America Ugreen Limited RF exposure evaluation

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RF exposure evaluation

America Ugreen Limited W526 2-in-1 Magnetic Wireless Charger 2BOTB-W526 2BOTBW526 w526

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Page 1 of 19

FCC ID: 2BOTB-W526

Report No.: LCSA04225113EB

RF Exposure Evaluation
For
America Ugreen Limited 2-in-1 Magnetic Wireless Charger
Test Model: W526

Prepared for Address

: America Ugreen Limited : 108 West, 13Th Street, Wilmington, Delaware 19801, United States

Prepared by
Address
Tel Fax Web Mail

: Shenzhen LCS Compliance Testing Laboratory Ltd.

101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China

: (+86)755-82591330

: (+86)755-82591332

: www.LCS-cert.com

: [email protected]

Date of receipt of test sample : April 24, 2025

Number of tested samples

Sample No.

: A250422061-1, A250422061-2

Serial number

: Prototype

Date of Test

: April 24, 2025 ~ May 13, 2025

Date of Report

: May 14, 2025

Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity

Page 2 of 19

FCC ID: 2BOTB-W526

Report No.: LCSA04225113EB

RF Exposure Evaluation

Report Reference No. .....................: LCSA04225113EB Date of Issue....................................... : May 14, 2025

Testing Laboratory Name.............. : Shenzhen LCS Compliance Testing Laboratory Ltd.

Address................................................

101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China

Testing Location/ Procedure............. : Full application of Harmonised standards

Partial application of Harmonised standards

Other standard testing method

Applicant's Name............................. : America Ugreen Limited

Address................................................ : 108 West, 13Th Street, Wilmington, Delaware 19801, United States

Test Specification Standard.............................................. : FCC KDB publication 680106 D01 RF Exposure Wireless Charging
Apps v03 FCC CFR 47 part1 1.1310 FCC CFR 47 part2 2.1091 FCC CFR 47 part 18.107 Test Report Form No....................... : TRF-4-E-214 A/0 TRF Originator.................................... : Shenzhen LCS Compliance Testing Laboratory Ltd. Master TRF......................................... : Dated 2011-03 Shenzhen LCS Compliance Testing Laboratory Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen LCS Compliance Testing Laboratory Ltd. is acknowledged as copyright owner and source of the material. Shenzhen LCS Compliance Testing Laboratory Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. EUT Description............................... : 2-in-1 Magnetic Wireless Charger Trade Mark.......................................... : Test Model........................................... : W526 Ratings................................................. : USB-C1 (IN) Input: 5.0V 3.0A/9.0V 3.0A/12.0V 2.5A Wireless Charging Total Output Power: 20.0W Max (iPhone: 7.5W, AirPods: 5.0W) USB-C2 (OUT) Output: 5.0V 1.0A 5.0W Max Total Output Power: 25.0W Max Result ...................................................: Positive

Compiled by:

Supervised by:

Approved by:

Li Huan/ Administrator

Jack Liu/ Technique principal

Gavin Liang/ Manager

Page 3 of 19

FCC ID: 2BOTB-W526

FCC -- TEST REPORT

Report No.: LCSA04225113EB

Test Report No. :

LCSA04225113EB

May 14, 2025 Date of issue

EUT......................................... : 2-in-1 Magnetic Wireless Charger

Test Model............................... : W526

Applicant............................... Address.................................. Telephone............................... Fax..........................................

: America Ugreen Limited : 108 West, 13Th Street, Wilmington, Delaware 19801, United States :/ :/

Manufacturer........................ Address................................... Telephone............................... Fax..........................................

: America Ugreen Limited : 108 West, 13Th Street, Wilmington, Delaware 19801, United States :/ :/

Factory................................... Address...................................
Telephone............................... Fax..........................................

: AQUILSTAR TECHNOLOGY (VIET NAM) CO.,LTD : Hamlet Ve, Dong Tam Commune, Ninh Giang District, Hai Duong
Province, Viet Nam. :/ :/

Test Result:

Positive

The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory.

Page 4 of 19

FCC ID: 2BOTB-W526

Report No.: LCSA04225113EB

Report Version 000

Revision History

Issue Date May 14, 2025

Revision Content Initial Issue

Revised By ---

Description

Page 5 of 19

FCC ID: 2BOTB-W526

TABLE OF CONTENTS

Report No.: LCSA04225113EB Page

1. PRODUCT INFORMATION .................................................................................................................................... 6 2. EVALUATION METHOD ......................................................................................................................................... 7 3. EVALUATION LIMIT .............................................................................................................................................. 10 4. TEST SETUP DIAGRAM .......................................................................................................................................11 5. TEST EQUIPMENT ................................................................................................................................................ 11 6. MEASUREMENT PROCEDURE ..........................................................................................................................11 7. EQUIPMENT APPROVAL CONSIDERATIONS ............................................................................................... 12 8. E AND H FIELD STRENGTH ............................................................................................................................... 13 9. TEST SETUP PHOTOS ......................................................................................................................................... 16 10. CONCLUSION ...................................................................................................................................................... 19 11. DESCRIPTION OF TEST FACILITY ................................................................................................................. 19 12. MEASUREMENT UNCERTAINTY .................................................................................................................... 19

Page 6 of 19

FCC ID: 2BOTB-W526

Report No.: LCSA04225113EB

1. Product Information

EUT

: 2-in-1 Magnetic Wireless Charger

Test Model

: W526

Ratings

: USB-C1 (IN) Input: 5.0V 3.0A/9.0V 3.0A/12.0V 2.5A

Wireless Charging Total Output Power: 20.0W Max

(iPhone: 7.5W, AirPods: 5.0W)

USB-C2 (OUT) Output: 5.0V 1.0A 5.0W Max Total Output Power: 25.0W Max

Hardware Version : W526-35278-A-V2; W526-35278-B-V1

Software Version

: W526-35278-A; W526-35278-B

Wireless Charging :

Operating Frequency : 110.1-205KHz

Modulation Type

: ASK

Antenna Type

: Coil Antenna

Note: For a more detailed antenna description, please refer to the antenna specifications or the antenna report provided by the customer. Remark:
- P/N code in the below table, for marketing purpose, will be marked on the marking plate
35278 35278P 35278X 35278A 35278B 35278U 35278JP 35278ZD

35278T

2. Evaluation Method

Page 7 of 19

FCC ID: 2BOTB-W526

Report No.: LCSA04225113EB

Per KDB 680106 D01 Section 3. RF Exposure Requirements;
1) Wireless power transfer devices must comply with RF exposure requirements for all design configurations in which they can operate. At a minimum, RF exposure must be evaluated for the worst-case scenario, typically when the transmitter, while delivering energy to a client device, is operating at maximum output power. RF exposure compliance for equipment authorization must be determined following the guidance of KDB447498, which includes consideration of the different test requirements for Mobile Device and Portable Device exposure categories, as defined in §§ 2.1091 and 2.1093 of the Rules.
2) The RF exposure limits, as set forth in § 1.1310, do not cover the frequency range below 100 kHz for Specific Absorption Rate (SAR) and below 300 kHz for Maximum Permitted Exposure (MPE). In addition, present limitations of RF exposure evaluation systems prevent an accurate evaluation of SAR below 4 MHz. For these reasons, a specific MPE-based RF Exposure compliance procedure for devices operating in the aforementioned low-frequency ranges has been set in place. This procedure is applicable to Equipment Authorization of all RF devices, thus including, but not limited to, Part 18 and WPT devices. Accordingly, for § 2.1091-Mobile devices, the MPE limits between 100 kHz to 300 kHz are to be considered the same as those at 300 kHz in Table 1 of § 1.1310, that is, 614 V/m and 1.63 A/m, for the electric field and magnetic field, respectively. For § 2.1093-Portable devices below 4 MHz and down to 100 kHz, the MPE limits in § 1.1310 (with the 300 kHz limit applicable all the way down to 100 kHz) can be used for the purpose of equipment authorization in lieu of SAR evaluations.
Furthermore, consistent with FCC's equipment authorization RF exposure guidance, any device (both portable and mobile) operating at frequencies below 100 kHz is considered compliant for the purpose of equipment authorization when the external (unperturbed) temporal peak field strengths do not exceed the following reference levels:
83 V/m for the electric field strength (E)
and 90 A/m for the magnetic field strength (H)
These data may be provided through measurements and/or numerical simulations, and for all the positions in space relevant for any possible body exposure.
3) "Large size" probes may prevent the measurement of E- and/or H-fields near the surface of the radiating structure (e.g., a WPT source coil), as in the example shown in Figure 1.
If the center of the probe sensing element is located more than 5 mm from the probe outer surface, the field strengths need to be estimated through modeling for those positions that are not reachable. The estimates may be done either via numerical calculation, or via analytic model: e.g., approximated formulas for circular coils, dipoles, etc., may be acceptable if it is shown that the model is applicable for the design parameters considered. A typical example is the use of a quasi-static approximation formula for a low-frequency magnetic field source. These estimates shall include points spaced no more than 2 cm from each other. Thus, in the example of
Figure 1, at least the estimates at 0 cm2 and 2 cm are required, while only one point would not be sufficient. In addition, the model needs to be validated through the probe measurements for the two closest points to the device surface, and with 2-cm increments, as indicated in Figure 1. In that example, the same model must also be applied to the 4 cm and 6 cm positions, and then compared with the measured data, for validation purposes. The validation is considered sufficient if a 30% agreement between the model and the (E- and/or H-field) probe measurements is demonstrated. If such a level of agreement cannot be shown, a more accurate model (and/or a smaller probe) shall be used.

Page 8 of 19

FCC ID: 2BOTB-W526

Report No.: LCSA04225113EB

4) Part 18 Wireless Power Transfer up to One-Meter Distance. This section applies only to WPT transmitters that, by design, can provide power to a load located at a distance no greater than one meter. This distance shall be measured between the closest points between the transmitter and the receiver enclosure surfaces. For instance, two coils positioned as in Figure 2-a may be operated and considered under the provisions of this section, because both receivers are within one-meter distance from the transmitter. However, the case in Figure 2-b cannot be considered in the same way, and it is treated according to the prescription of Section 5.3.
For WPT designs with more than one radiating structure the distance to the load shall be considered as in Figure 3, thus measured between the receiver and the closest transmitting structure.

Page 9 of 19

FCC ID: 2BOTB-W526

Report No.: LCSA04225113EB

There might be situations where the WPT RF emissions are limited enough that even operations in a "crowded" environment, where many similar WPT devices are present, do not pose significant EMC and RF exposure concerns. In this scenario, and for devices operating within a one-meter distance from the receiver, as defined above, a manufacturer will not have to submit an "Equipment Compliance Review" KDB, and receive FCC concurrence before proceeding with equipment authorization. This exception to the requirement of submitting the ECR to obtain FCC concurrence only applies when all the following criteria (1) through (6) are met:
(1) The power transfer frequency is below 1 MHz.
(2) The output power from each transmitting element (e.g., coil) is less than or equal to 15 watts.
(3) A client device providing the maximum permitted load is placed in physical contact with the transmitter (i.e., the surfaces of the transmitter and client device enclosures need to be in physical contact)
(4) Only § 2.1091- Mobile exposure conditions apply (i.e., this provision does not cover § 2.1093 Portable exposure conditions).
(5) The E-field and H-field strengths, at and beyond 20 cm surrounding the device surface, are demonstrated to be less than 50% of the applicable MPE limit, per KDB 447498, Table 1. These measurements shall be taken along the principal axes of the device, with one axis oriented along the direction of the estimated maximum field strength, and for three points per axis or until a 1/d (inverse distance from the emitter structure) field strength decay is observed. Symmetry considerations may be used for test reduction purposes. The device shall be operated in documented worst-case compliance scenarios (i.e., the ones that lead to the maximum field components), and while all the radiating structures (e.g., coils or antennas) that by design can simultaneously transmit are energized at their nominal maximum power.
6) For systems with more than one radiating structure, the conditions specified in (5) must be met when the system is fully loaded (i.e., clients absorbing maximum power available), and with all the radiating structures operating at maximum power at the same time, as per design conditions. If the design allows one or more radiating structures to be powered at a higher level while other radiating structures are not powered, then those cases must be tested as well. For instance, a
Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity

Page 10 of 19

FCC ID: 2BOTB-W526

Report No.: LCSA04225113EB

device may use three RF coils powered at 5 W, or one coil powered at 15 W: in this case, both scenarios shall be tested

3. Evaluation Limit

3.1 Refer evaluation method ANSI C95.11999: IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz.
FCC KDB publication 680106 D01 RF Exposure Wireless Charging Apps v03: RF Exposure Considerations for Low Power Consumer Wireless Power Transfer Applications
FCC CFR 47 part1 1.1310: Radiofrequency radiation exposure limits.
FCC CFR 47 part2 2.1091: Radiofrequency radiation exposure evaluation: mobile devices
FCC CFR 47 part 18.107:Indusial, Scientific, and Medical Equipment

3.2 Limit Limits for Maximum Permissible Exposure (MPE)/Controlled Exposure

Frequency Range(MHz)

Electric Field Strength(V/m)

Magnetic Field Strength(A/m)

Power Density (mW/cm²)

Averaging Time (minute)

Limits for Occupational/Controlled Exposure

0.3-3.0

614

1.63

*100

3.0-30

1842/f

4.89/f

*900/f2

30-300

61.4

0.163

1.0

300-1,500

f/300

1,500-100,000

Limits for Maximum Permissible Exposure (MPE)/Uncontrolled Exposure

Frequency Range(MHz)

Electric Field Strength(V/m)

Magnetic Field Strength(A/m)

Power Density (mW/cm²)

Limits for General Population/Uncontrolled Exposure

0.3-1.34 1.34-30

614 824/f

1.63 2.19/f

*100 *180/f2

30-300

27.5

0.073

0.2

300-1,500

f/1500

1,500-100,000

1.0

Averaging Time (minute)
30 30 30 30 30

F=frequency in MHz *=Plane-wave equivalent power density

According to FCC KDB 680106 D01 Section 3. RF Exposure Requirements clause 3 the Emission-Limits in the frequency range from 100 KHz to 300 KHz should be assessed versus the limits at 300 KHz in Table 1 of CFR 47 Section1.310 as following (measured distance shall be 15cm from the center of the probe to the edge of the device):

Frequency 0.3 MHz 3.0 MHz 3.0 MHz 30 MHz

E-Field V/m 614
824/f (=27.530MHz)

*/* A/m 1.613 2.19/f (=0.07330MHz)

B-Field uT 2.0 --

Page 11 of 19

FCC ID: 2BOTB-W526

Report No.: LCSA04225113EB

A KDB inquire was required to determine/confirm the applicable limits below 100 KHz.

4. Test Setup Diagram

5. Test Equipment

Equipment Exposure Level Tester
B-Field Probe Electric field probe

Manufacturer Narda Narda Narda

Model ELT-400 ELT-400 EP601

Serial no. N-0713 M-1154 611WX70332

Calibrated date 2024-11-11 2024-10-08 N/A

Calibrated Due 2025-11-10 2025-10-07 N/A

6. Measurement Procedure
a) The RF exposure test was performed on 360 degree turn table in anechoic chamber. b) The measurement probe was placed at test distance (15cm and 20cm) which is between the edges of the charger and the geometric center of probe. c) The turn table was rotated 360d degree to search of highest strength. d) The highest emission level was recorded and compared with limit as soon as measurement of each points (A, B, C, D, E) were completed. e) The EUT were measured according to the dictates of KDB 680106D01v03.

Page 12 of 19 7. Equipment Approval Considerations

FCC ID: 2BOTB-W526

Report No.: LCSA04225113EB

The EUT does comply with item 5.2 of KDB 680106 D01v04 as follows table;

Requirements of KDB 680106 D01

Yes / Description No

The device operates in the

Power transfer frequency is less than 1 MHz

Yes frequency range 110.1 KHz -

205KHz

For iPhoneThe maximum output

The output power from each transmitting element (e.g., coil) is less than or equal to 15 watts.

Yes

power of the primary coil is 7.5W. For AirPodsThe maximum output

power of the primary coil is 5.0W.

A client device providing the maximum permitted

load is placed in physical contact with the transmitter (i.e., the surfaces of the transmitter and client device

Yes

Client device is placed directly in contact with the transmitter.

enclosures need to be in physical contact)

Only § 2.1091- Mobile exposure conditions apply

(i.e., this provision does not cover § 2.1093-Portable Yes Mobile exposure conditions only

exposure conditions).

The E-field and H-field strengths, at and beyond 20

cm surrounding the device surface, are

demonstrated to be less than 50% of the applicable

MPE limit, per KDB 447498, Table 1. These

measurements shall be taken along the principal

axes of the device, with one axis oriented along the

direction of the estimated maximum field strength,

and for three points per axis or until a 1/d (inverse

distance from the emitter structure) field strength

Yes

decay is observed. Symmetry considerations may be

used for test reduction purposes. The device shall be

operated in documented worst-case compliance

The EUT H-field strengths at 15 cm surrounding the device and 20 cm above the top surface from all simultaneous transmitting coils are demonstrated to be less than 50% of the MPE limit.

scenarios (i.e., the ones that lead to the maximum

field components), and while all the radiating

structures (e.g., coils or antennas) that by design

can simultaneously transmit are energized at their

nominal maximum power.

For systems with more than one radiating structure,

the conditions specified in (5) must be met when the

system is fully loaded (i.e., clients absorbing

maximum power available), and with all the radiating structures operating at maximum power at the same Yes time, as per design conditions. If the design allows

Only two radiating structure and tested at maximum Output Power

one or more radiating structures to be powered at a

higher level while other radiating structures are not

powered, then those cases must be tested as well.

Page 13 of 19

FCC ID: 2BOTB-W526

For instance, a device may use three RF coils powered at 5 W, or one coil powered at 15 W: in this case, both scenarios shall be tested

Report No.: LCSA04225113EB

8. E and H field Strength Test Modes Mode 1 AC/DC Adapter (12.0V/2.5A) + EUT + Phone + TWS Earphone (Battery Status: <1%) Mode 2 AC/DC Adapter (12.0V/2.5A) + EUT + Phone + TWS Earphone (Battery Status: <50%) Mode 3 AC/DC Adapter (12.0V/2.5A) + EUT + Phone + TWS Earphone (Battery Status: 100%) Mode 4 AC/DC Adapter (9.0V/3.0A) + EUT + Phone + TWS Earphone (Battery Status: <1%) Mode 5 AC/DC Adapter (9.0V/3.0A) + EUT + Phone + TWS Earphone (Battery Status: <50%) Mode 6 AC/DC Adapter (9.0V/3.0A) + EUT + Phone + TWS Earphone (Battery Status: 100%) Mode 7 AC/DC Adapter (5.0V/3.0A) + EUT + Phone + TWS Earphone (Battery Status: <1%) Mode 8 AC/DC Adapter (5.0V/3.0A) + EUT + Phone + TWS Earphone (Battery Status: <50%) Mode 9 AC/DC Adapter (5.0V/3.0A) + EUT + Phone + TWS Earphone (Battery Status: 100%) Mode 10 AC/DC Adapter (12.0V/2.5A) + EUT + Phone (Battery Status: <1%) Mode 11 AC/DC Adapter (12.0V/2.5A) + EUT + Phone (Battery Status: <50%) Mode 12 AC/DC Adapter (12.0V/2.5A) + EUT + Phone (Battery Status: 100%) Mode 13 AC/DC Adapter (12.0V/2.5A) + TWS Earphone (Battery Status: <1%) Mode 14 AC/DC Adapter (12.0V/2.5A) + TWS Earphone (Battery Status: <50%) Mode 15 AC/DC Adapter (12.0V/2.5A) + TWS Earphone (Battery Status: 100%) Mode 16 AC/DC Adapter (9.0V/3.0A) + EUT + Phone (Battery Status: <1%) Mode 17 AC/DC Adapter (9.0V/3.0A) + EUT + Phone (Battery Status: <50%) Mode 18 AC/DC Adapter (9.0V/3.0A) + EUT + Phone (Battery Status: 100%) Mode 19 AC/DC Adapter (9.0V/3.0A) + EUT + TWS Earphone (Battery Status: <1%) Mode 20 AC/DC Adapter (9.0V/3.0A) + EUT + TWS Earphone (Battery Status: <50%) Mode 21 AC/DC Adapter (9.0V/3.0A) + EUT + TWS Earphone (Battery Status: 100%) Mode 22 AC/DC Adapter (5.0V/3.0A) + EUT + Phone (Battery Status: <1%) Mode 23 AC/DC Adapter (5.0V/3.0A) + EUT + Phone (Battery Status: <50%) Mode 24 AC/DC Adapter (5.0V/3.0A) + EUT + Phone (Battery Status: 100%) Mode 25 AC/DC Adapter (5.0V/3.0A) + EUT + TWS Earphone (Battery Status: <1%) Mode 26 AC/DC Adapter (5.0V/3.0A) + EUT + TWS Earphone (Battery Status: <50%) Mode 27 AC/DC Adapter (5.0V/3.0A) + EUT + TWS Earphone (Battery Status: 100%)
Note: All test modes were pre-tested, but we only recorded the worst case in this report.

Record Record Record Pre-tested Pre-tested Pre-tested Pre-tested Pre-tested Pre-tested Pre-tested Pre-tested Pre-tested Pre-tested Pre-tested Pre-tested Pre-tested Pre-tested Pre-tested Pre-tested Pre-tested Pre-tested Pre-tested Pre-tested Pre-tested Pre-tested Pre-tested Pre-tested

Page 14 of 19

FCC ID: 2BOTB-W526

Report No.: LCSA04225113EB

For iPhone Field Strength at 15 cm from the edges surrounding the EUT and 15cm from the top surface of the EUT

Load mode
Mode 1 Mode 1 Mode 1 Mode 2 Mode 2 Mode 2 Mode 3 Mode 3 Mode 3

Frequency Range (kHz)
110.1~205 110.1~205 110.1~205 110.1~205 110.1~205 110.1~205 110.1~205 110.1~205 110.1~205

Field Strength
uT A/m V/m uT A/m V/m uT A/m V/m

Measured Field Strength Values

Test Position
A

Test Position
B

Test Position
C

Test Position
D

Test Position
E

0.127 0.102 38.317 0.126

0.138 0.111 41.640 0.133

0.142 0.114 42.767 0.137

0.132 0.106 39.784 0.125

0.148 0.119 44.622 0.148

0.101 0.106 0.110 0.100 0.119

37.846 39.914 41.175 37.601 44.585

0.122 0.097 36.549

0.131 0.105 39.466

0.137 0.109 41.122

0.124 0.099 37.304

0.139 0.111 41.805

50% Limits
-0.815 307.0
-0.815 307.0
-0.815 307.0

Limits
-1.63 614.0
-1.63 614.0
-1.63 614.0

For TWS Earphone

Load mode

Frequency Range (kHz)

Mode 1 Mode 1 Mode 1 Mode 2 Mode 2 Mode 2 Mode 3 Mode 3 Mode 3

110.1~205 110.1~205 110.1~205 110.1~205 110.1~205 110.1~205 110.1~205 110.1~205 110.1~205

Field Strength
uT A/m V/m uT A/m V/m uT A/m V/m

Measured Field Strength Values

Test Position
A 0.128 0.103 38.606

Test Position
B 0.139 0.111 41.741

Test Position
C 0.143 0.114 42.856

Test Position
D 0.134 0.107 40.328

Test Position
E 0.147 0.118 44.196

0.125 0.100 37.662 0.121 0.097 36.506

0.133 0.106 39.953 0.130 0.104 38.991

0.142 0.113 42.647 0.135 0.108 40.513

0.129 0.103 38.765 0.125 0.100 37.550

0.146 0.116 43.785 0.142 0.113 42.607

50% Limits
-0.815 307
-0.815 307
-0.815 307

Limits
-1.63 614
-1.63 614
-1.63 614

For iPhone

Page 15 of 19

FCC ID: 2BOTB-W526

Report No.: LCSA04225113EB

Field Strength at 15 cm from the edges surrounding the EUT and 15cm from the top surface of the EUT

Load mode

Frequency Range (kHz)

Field Strength

Measured Field Strength Values
Test

50% Limits

Limits

Position E

Mode 1

110.1~205

0.144

Mode 1

110.1~205

A/m

0.115

0.815

1.63

Mode 1

110.1~205

V/m

43.409

307

614

Mode 2

110.1~205

0.144

Mode 2

110.1~205

A/m

0.115

0.815

1.63

Mode 2

110.1~205

V/m

43.294

307

614

Mode 3

110.1~205

0.138

Mode 3

110.1~205

A/m

0.111

0.815

1.63

Mode 3

110.1~205

V/m

41.572

307

614

For TWS Earphone

Load mode

Frequency Range (kHz)

Mode 1 Mode 1 Mode 1 Mode 2 Mode 2 Mode 2 Mode 3 Mode 3 Mode 3

110.1~205 110.1~205 110.1~205 110.1~205 110.1~205 110.1~205 110.1~205 110.1~205 110.1~205

Field Strength
uT A/m V/m uT A/m V/m uT A/m V/m

Measured Field Strength Values
Test Position E
0.149 0.119 44.747 0.146 0.116 43.757 0.140 0.112 41.974

50% Limits
-0.815 307
-0.815 307
-0.815 307

Limits
-1.63 614
-1.63 614
-1.63 614

Note:V/m=10(((20lg(A/m*10^6)+51.5)-120)/20) Note:A/m=uT/1.25

Page 16 of 19

FCC ID: 2BOTB-W526

9. Test Setup Photos 9.1. Test Position A - Exposure photo from side edge surface-Rear(15cm)

Report No.: LCSA04225113EB

15cm

(TM1) 9.2. Test Position B - Exposure photo from side edge surface-Left(15cm)
15cm
(TM1)
Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity

Page 17 of 19

FCC ID: 2BOTB-W526

9.3. Test Position C - Exposure photo from side edge surface-Front(15cm)

Report No.: LCSA04225113EB

15cm

(TM1) 9.4. Test Position D - Exposure photo from side edge surface-Right(15cm)
15cm
(TM1)
Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity

Page 18 of 19

FCC ID: 2BOTB-W526

9.5. Test Position E - Exposure photo from top surface (20cm)

Report No.: LCSA04225113EB

20cm

(TM1) 9.6. Test Position E- Exposure photo from top surface (15cm)
15cm
(TM1)
Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity

Page 19 of 19

FCC ID: 2BOTB-W526

Report No.: LCSA04225113EB

10. Conclusion A minimum safety distance of at 15 cm surrounding the device and 20 cm above the top surface of the device is required when the device is charging a smart phone. The detected emissions with a distance of 15 cm surrounding the device and 20 cm above the top surface of the device are below the limitations according to FCC KDB 680106 D01 Section 3. RF Exposure Requirement Clause 3.

11. Description of Test Facility NVLAP Accreditation Code is 600167-0. FCC Designation Number is CN5024. CAB identifier is CN0071. CNAS Registration Number is L4595. Test Firm Registration Number: 254912.

12. Measurement Uncertainty

Test Item

Frequency Range

Uncertainty

Note

Field Strength Uncertainty :

1Hz~400KHz

(1)

(1). This uncertainty represents an expanded uncertainty expressed at approximately the 95% confidence level using a coverage factor of k=2.

.........................END OF REPORT.........................

Related FCC IDs:

2BOTB-W526 - America Ugreen Limited 2-in-1 Magnetic Wireless Charger [-W526]

WPS 文字