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BTR1K

Model  BTR1K Color Available Black
Weight About 20.5g (incl. battery) Dimensions About 24mm x 50mm x 11.6mm (excl. of back clip)
Audio Input Bluetooth connection (Bluetooth 5.0 supported) Supported Audio Format(s) SBC, AAC, aptX and aptX LL
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 status
Charging Time ≤1.5 h (DC 5V 500mA) Power Input Recommend DC 5V, 500mA
Battery Capacity 205 mAh Drive Ability 16~100 Ω (recommended)
Output Power ≥ 25mW (32Ω/THD＜1%)
≥ 45mW (16Ω/THD＜1%)		 Frequency Response 20～20kHz（aptX connection)
THD+N ＜0.04%(1 kHz) Bluetooth
＜0.004%(1 kHz) USB DAC		 Output Impedance ＜0.3 Ω（32Ω loaded）
SNR 118dB (A-weighted) Crosstalk ≥ 74 dB（32Ω loaded）
Bluetooth Chip Qualcomm QCC3005 Accessories Type C USB charging cable*1, Quick Start Guide*1, Warranty Card*1 and Lanyard*1
Battery Life & Test  Conditions (The test result is based on specified test conditions and just for referrence)
Battery Life About 8h  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 connection, play -5 dB sinusoidal signal, 44.1kHz/16bit, 32Ω loaded
Blue curve: Left channel; Red curve: Right channel

Frequency response curve 2

Test condition: AAC connection, play -5 dB sinusoidal signal, 44.1kHz/16bit, 32Ω loaded
Blue curve: Left channel; Red curve: Right channel

Frequency response curve 3

Test condition: SBC connection, play -5 dB sinusoidal signal, 44.1kHz/16bit, 32Ω loaded
Blue curve: Left channel; Red curve: Right channel