BTR1

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Model Name/Number BRT1/FB1121 Color Available Black
Weight About 20.5 g (incl. battery) Dimensions About 24mm x 50mm x 11.6mm
Audio Input

Bluetooth connection

 (Bluetooth 4.2 supported)

 Bluetooth Codec Supporting SBC, aptX
Headphone Output 3.5 mm stereo jack Drive Ability 16~100 Ω (recommended)
Volume Control Side buttons Charging Indication

Red light indicates , 

and light turns off after fully charged
Charging Time ≤2 h（DC5V 500mA） Power Input

Recommend DC5V 500mA 

(Micro USB charging port)
Battery Capacity 205 mAh Battery Life about 8 h
Output Power ≥30mW (16 Ω/THD＜1%) Frequency Response 20 Hz~20 kHz
≥ 15mW（32Ω/THD＜1%）
THD+N ＜0.04％ (1 kHz) Output Impedance ＜0.2 Ω
SNR ≥95dB (A-weighted) Max. Input Level 0 dB
Crosstalk ≥ 72 dB Channel Imbalance 0.2 dB
Peak Output Voltage 2 Vp-p MAX. Output Current ＞22 mA
Chip Used Bluetooth chip：CSRA64215 Mic Function Supported
DAC chip：AK4376