Headphones Bluetooth WK M8 Black

Bluetooth version: V5.0
Bluetooth frequency: 2400MHZ-2500MHZ
Impedance: -32ohm
Rechargeable battery capacity: 200mAh
Play time: 3-4 hours
Talk time: 3-4 hours
Standby time: 80 hours
Charging time: 2-3 hours
Power input: 5V-1A
Material: ABS + PC
Sensitivity:122dB
Frequency Response Range:8-24000Hz
Support Memory Card:Yes