Buy now

BTR3

Model  BTR3 Color Available Black
Weight About 26 g (incl. battery) Dimensions About  58×25×10.4mm (exclusive of back clip)
Audio Input Bluetooth connection (Bluetooth 4.2 supported) Supported Audio Format(s) AAC/SBC/aptX/aptX LL/ aptX HD/LDAC/LHDC
NFC Supported Mic Function Supported
Headphone Output 3.5 mm stereo jack USB Port Type C USB
Volume Control Side buttons Status Indicator Light RGB light indicates the input Bluetooth audio codec, charging and working statu
Charging Time ≤1.5 h (DC 5V 500mA) Power Input Recommend DC 5V, 500mA
Battery Capacity 300 mAh Drive Ability 16~100 Ω (recommended)
Output Power About 25mW (32Ω loaded)
About 33mW (16Ω loaded)
Frequency Response

20~20kHz(aptX connection)

20~40kHz(LDAC connection)

THD+N <0.003%(LHDC 1kHz) Output Impedance <0.3 Ω(32Ω loaded)
SNR 120dB (A-weighted) Crosstalk ≥ 75 dB(32Ω loaded)
Bluetooth Chip CSR8675 Accessories Type C USB charging cable*1, Quick Start Guide*1, Warranty Card*1,Lanyard*1
Battery Life & Test  Conditions (The test result is based on specified test conditions and just for referrence)
Battery Life About 11 h  Bluetooth Transmitter iPhone 6P (AAC)
Connected Headphones EM3 open earbuds (27 Ω) Volume With set output at 40mV
Test File MP3 file (Click here to download)    

Frequency response curve 1

 

Test condition: aptX HD connection, play -5 dB sinusoidal signal, 44.1kHz/16bit, 32Ω loaded

Red curve: Left channel;  Blue curve: Right channel

Frequency response curve 2

 

Test condition: LHDC connection, play -5 dB sinusoidal signal, 192kHz/24bit, 32Ω loaded

Red curve: Left channel;  Blue curve: Right channel

Frequency response curve 3

 

Test condition: LDAC connection, play -5 dB sinusoidal signal, 192kHz/24bit, 32Ω loaded

Red curve: Left channel;  Blue curve: Right channel