| Model |
BTR5 |
BTR3K |
BTR3 |
BTR1 |
BTR1K |
μBTR |
| Volume Adjustment |
60 Steps Independent adjustment |
32 Steps Independent adjustment |
32 Steps Independent adjustment |
Independent adjustment for some phones but simultaneously for iPhone and some other phone |
32 Steps Independent adjustment |
16 Steps Independent adjustment |
| Bluetooth Profile |
A2DP，AVRCP，HFP，HSP |
A2DP，AVRCP，HFP，HSP |
A2DP，AVRCP，HFP，HSP |
A2DP，AVRCP，HFP，HSP |
A2DP，AVRCP，HFP，HSP |
A2DP，AVRCP，HFP，HSP |
| Supported Audio Formats |
SBC，AAC，aptX, aptX Low Latency，
aptX HD, LDAC, |
SBC，AAC，aptX, aptX Low Latency，
aptX HD, LDAC, |
SBC，AAC，aptX, aptX Low Latency，
aptX HD, LDAC, LHDC |
SBC、AAC、aptX, aptX Low Latency |
SBC、AAC、aptX, aptX Low Latency |
SBC、AAC、aptX |
| Bluetooth Version |
5.0 |
5.0 |
4.2 |
4.2 |
5.0 |
4.1 |
| Bluetooth Chip |
CSR8675 |
CSR8675 |
CSR8675 |
CSRA64215 |
QCC3005 |
CSR8645 |
| DAC Chip |
ES9218P×2 |
AK4377Ax2 |
AK4376A |
AK4376A |
AK4376A |
/ |
| Amp Chip |
TPA6132A2 |
| USB DAC Chip |
Xmos Xuf208 |
Comes With CSR8675 |
Comes With CSR8675 |
/ |
Comes With QCC3005 |
/ |
| USB DAC Sample Rate |
384k/32bit
DSD 256 |
48K/16bit |
48K/16bit |
/ |
48K/16bit |
/ |
| Dedicated Pairing Button |
√ |
√ |
√ |
/ |
√ |
/ |
| Dedicated Volume Button |
√ |
√ |
√ |
√ |
√ |
√ |
| Transmission Distance (at open area) |
About 10m |
About 10m |
About 10m |
About 10m |
About 10m |
About 10m |
| Status Indicator Light&Display |
0.49 inch monochrome OLED
Display battery, volume, Bluetooth codes,Menu setting items and adjustments |
RGB light indicates the input Bluetooth audio codec, charging and working status
Blue SBC, Cyan AAC, Purple aptX/aptX LL, Yellow aptXHD, White LDAC/DAC |
RGB light indicates the input Bluetooth audio codec, charging and working status
Blue SBC, Cyan AAC, Purple aptX/aptX LL, Yellow aptXHD, White LDAC/DAC, Green LHDC |
LED light indicates sound effect,
charging and working status |
RGB light indicates the input Bluetooth audio codec, charging and working status
Blue SBC, Cyan AAC, Purple aptX/aptX LL, White USB DAC |
LED light indicates
charging and working status |
| APP Control |
√ |
√ |
√ |
/ |
/ |
/ |
| Call up Siri in iOS |
√ |
√ |
√ |
/ |
√ |
√ |
| NFC |
√ |
/ |
√ |
/ |
√ |
√ |
| Hands-free Call / Mic |
√ |
√ |
√ |
√ |
√ |
√ |
| In-Line Remote Control |
CTIA mic and In-Line Remote Control |
CTIA mic and In-Line Remote Control |
/ |
/ |
/ |
/ |
| 3.5mm Headphone Output@32Ω |
80mW |
25mW |
25mW |
25mW |
25mW |
10mW |
| 2.5mm Balanced Output@32Ω |
240mW |
78mW |
/ |
/ |
/ |
/ |
| SNR（(A-weighted） |
122dB |
122dB |
120dB |
|
118dB |
95dB |
| USB Port |
Type C |
TypeC |
Type C |
Micro USB |
Type C |
Type C |
| Battery Life |
550mAh |
330mAh |
300mAh |
205mAh |
205mAh |
120mAh |
| Battery Life(AAC) |
9h |
11h |
11h |
8h |
8h |
8-9h |
| Charging Time |
1.5h |
1.5h |
1.5h |
2h |
1.5h |
1h |
| Dimensions |
72×32×11.1mm (excl. back clip) |
58×25×11mm (excl. back clip) |
58×25×10.4mm (excl. back clip) |
24×50×11.6mm (excl. back clip) |
24×50×11.6mm (excl. back clip) |
55×19×9.1mm (excl. back clip) |
| Wearing |
Back clip + Lanyard |
Back clip + Lanyard |
Back clip + Lanyard |
Back clip + Lanyard |
Back clip + Lanyard |
Back clip |
| Weight |
43.7g |
23.5g(excl. back clip) |
25g |
20.5g |
20.5g |
12.5g |
