RF Exposure

Shenzhen Bonfin Technology Co., Ltd. S1 Wireless Earbuds 2A92U-S1 2A92US1 s1

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FCC ID: 2A92U-S1

RF Exposure Evaluation
According to KDB 447498 D01 V06 and part 2.1093Unless specifically required by the published RF exposure KDB procedures, standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the corresponding SAR Test Exclusion Threshold condition(s), listed below, is (are) satisfied.

For 100 MHz to 6 GHz and test separation distances  50 mm, the 1-g and 10-g SAR test exclusion thresholds are determined by the following: [(max. power of channel, including tune-up tolerance, mW) / (min. test separation distance, mm)] · [f(GHz)]  3.0 for 1-g SAR, and  7.5 for 10-g extremity SAR, where
f(GHz) is the RF channel transmit frequency in GHz Power and distance are rounded to the nearest mW and mm before calculation The result is rounded to one decimal place for comparison



is the equivalent isotropically radiated power, in dBm


is the field strength of the emission at the measurement distance, in dBV/m


is the measurement distance, in m

Here, For EDR
Field strength (dBuV/m) 84.25

EIRP (dBm) -10.91

Max tune-up (mW) 0.081

So a SAR test is not required

Frequency (MHz) 2480

Min. distance(mm)







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