This document presents the RF exposure evaluation for the Music Hand Shower, model MQS9920-100-7V0-53, under FCC ID 2BO8K-MQS9920. The evaluation ensures that the device operates within the permissible radio frequency energy levels, adhering to the Commission's guidelines as outlined in § 15.247(i) and § 1.1307b(1). The device utilizes Bluetooth BDR+EDR technology, operating in the 2402-2480MHz frequency range with 79 channels. It features a PCB antenna with a gain of 1.04 dBi and employs GFSK and π/4-DQPSK modulation schemes.
The power supply consists of a 5V/1A input and a Li-ion battery with a rated voltage of 3.7V and a capacity of 1500mAh/5.55Wh. The evaluation considers the maximum output power, tune-up tolerance, and minimum test separation distance to determine SAR test exclusion thresholds. The calculations demonstrate that the device complies with the SAR limits, and no simultaneous SAR measurement is required as it only supports Bluetooth functionality. The hardware version is JIUMU_J1_V9.4, and the software version is BP1048B2_TaiDe_BT1017_HORIZONV2_EQV4_ADC1(-3dB)_ENG_V63_2_50427_A576_lxbenf.MVA.