18_BS228RK RFExp

FCC ID: 2AIXN-BS228RK

RF Exposure Info

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FCCID_4435144

RF EXPOSURE EVALUATION

1. PRODUCT INFORMATION
Product Description TWS Bluetooth Headset

BS228RK, BS223RK, BS224RK, BS250RK, BS262RK, BS278RK,
Model Name
BS260RK

FCC ID 2AIXN-BS228RK

2. EVALUATION METHOD
According to 447498 D01 General RF Exposure Guidance v05
The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation
distances ≤ 50 mm are determined by:
[(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

3. CALCULATION

Pt=0.835dBm=1.21mW

The value of the Maximum output power Pt is referred to the test report of the CFR47
§15.247.

The result for RF exposure evaluation SAR=(1.21mW /5mm) .[√2.402(GHz)]= 0.38<3.0
for 1-g SAR and ≤ 7.5 for 10-g extremity SAR.

4. CONCLUSION
The SAR evaluation is not required.

Document Created: 2019-09-09 18:46:32
Document Modified: 2019-09-09 18:46:32

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