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Frequency Response diagram of curves 1.
Test condition：aptX HD connection, play -5 dB sinusoidal signal, High Gain, 48kHz 20Hz-20kHz, 3.5mm headphone output（32Ω loaded）
Frequency Response diagram of curves 2.
Test condition：LDAC connection, play -5 dB sinusoidal signal, High Gain, 96kHz 20Hz-20kHz, 3.5mm headphone output（32Ω loaded）
Left channel=Red curve；Right channel=Blue curve;
Model
BTR5
Color Available
Black
Weight
About 43.7 g（incl. battery）
Dimensions
About 72×32×11.1mm (exclusive of back clip)
Audio Input
Bluetooth connection (Bluetooth 5.0 supported)
Supported Audio Format(s)
AAC/SBC/aptX/aptX LL/ aptX HD/LDAC
NFC
Supported
Mic Function
Support Bluetooth call, built-in omnidirectional microphone; support external microphone of CTIA cable
Headphone Output
3.5 mm stereo jack
USB Port
Type C USB
Balanced Headphone Output
2.5mm jack
Drive Ability
16~100Ω（PO）
16~150Ω（BAL）
Channel Balance
≤0.1 dB
Gain
Supported(High/Low)
Volume Control
Side buttons
Status indication
Display indicates the Bluetooth code, charging, battery, volume, sampling rate, menu
APP interconnection
Supports setting through App
Bluetooth Codes Display
Charging Time
≤1.5 h (DC 5V 500mA)
Power Input
Recommend DC 5V 500mA
Battery Capacity
550 mAh
Output Power
PO about 80mW（32Ω loaded）
Frequency Response
20Hz～20kHz (aptX connection）
PO about 90mW（16Ω loaded）
BAL about 240mW（32Ω loaded）
20Hz～40kHz (LDAC connection）
BAL about 240mW（16Ω loaded）
THD+N
PO＜0.003%(LDAC 1kHz A-weighted)
Output Impedance
PO≤1.0Ω（32Ω loaded）
BAL＜0.002%(LDAC 1kHz A-weighted)
BAL≤2.0Ω（32Ω loaded）
Noise Floor
PO≤2uV（ A-weighted）
Amplitude
PO：1.6V（32Ω /THD+N＜1%）
PO: 1.8V (no loaded)
BAL≤2.2uV（ A-weighted）
BAL: 2.8V（32Ω /THD+N＜1%）
BAL: 3.6V(no loaded)
SNR
PO≥118dB (32Ω A-weighted)
PO≥ 79dB（1kHz 32Ω loaded）
Crosstalk
PO≥ 95dB（1kHz no loaded）
BAL≥122dB(32Ω A-weighted)
BAL≥ 118dB（1kHz 32Ω loaded）
BAL≥119dB（1kHz no loaded）
Sampling Rate Supported Up to
384kHz/32bit（USB DAC）
DSD Support (USB IN)
DSD64/128/256
Chips Used
DAC: ES9218PC * 2 , USB: XMOS XUF208 , Bluetooth： CSR8675
Accessories
Type C USB charging cable*1, Quick Start Guide*1, Warranty Card*1,Back Clip*1
Battery Life & Test Conditions (The test result is based on specified test conditions and just for referrence)
Battery Life
About 9h
Bluetooth Transmitter
iPhone （AAC）
Connected Headphones
M3 open earbuds（27Ω）
Volume
With set output at 40mV
Test File
Click here to download
Frequency Response diagram of curves 3.
Test condition：aptX HD connection,play -5 dB sinusoidal signal, High Gain, 48kHz 20Hz-20kHz， 2.5mm balanced output (32Ω loaded)
Frequency Response diagram of curves 4.
Test condition: LDAC connection，,play -5dB sinusoidal signal, High Gain, 96kHz 20Hz-20kHz, 2.5mm balanced output (32Ω loaded)
Frequency Response diagram of curves 5.
Test condition：USB DAC, play -5 dB sinusoidal signal, High Gain, 48kHz 20Hz-20kHz, 3.5mm headphone output（32Ω loaded）
Frequency Response diagram of curves 6.
Test condition：USB DAC, play -5 dB sinusoidal signal, High Gain, 48kHz 20Hz-20kHz, 2.5mm balanced output (32Ω loaded)
