Bluetooth version: Bluetooth 5.3
Compatibility: LDAC ，SBC，AAC，aptX, aptX-Adaptive，aptX-LL，aptX-HD，aptX-Adaptive, LHDC
Bluetooth chip: QCC5125
Independent chip: Dual ES9039Q2M
Independent amp: Dual TI OPA2107+ TPA6120A2
Independent play pause button: Yes
Previous/Next key：support
Independent volume key:Yes
BASS Gain：Supported
Independent song before and after adjustment: Yes
Transmission distance:13M
independent Volume knobl: support
Output power: 3.5/2.5/4.4≥400mW+400mW(32Ω)
Output Ohm:0.5Ω＜
Earphone ohm support：：6-300Ω
9039Q2M DNR：130DB
SNR:≈ 120DB
THD+N: 0.008（32Ω）:
Plug type: 3.5mm+4.4mm
USB : Type-C 5v 2a charge and support 44.1&48k PC usb dac
Battery capacity:2000mAh
Endurance: 3.5≥8h
Size: 55mm*90mm*15mm