MoXom MX-WL41 ANC Bluetooth Headphone

Wireless Version: V5.0+EDR
Operation range： 10M
Battery: 250mAh
Playing time：4 H
Standby time: 300 H
Charging time: 2 H
Speaker: φ40mm
Speaker Sensitivity: 110dB±3dB S.P.L at
1KHZ
Impedance: 32Ω
ANC: 18-23 dB
Frequency: 20-20KHz
Power Rating: 15mw x2