NC chipset:Realtek 8773B
Bluetooth:BT5.1
NC level:25dB±3
Sensitivity(SPK):110dbSPL@1K
Charging time:1.5h
BT on+ ANC off::7h
BT off+ ANC on:10h
BT on+ ANC on:4.7h
Standby time:120h
Earphone Battery:70mA
Charging boxBattery:430mA
Wireless Range:≥10m     
Speaker:Φ9mm  32Ω