M39 Private Mode TWS Bluetooth Headset With Binaural Noise Reduction

Specifications:
Product model: M39
Bluetooth version: V5.2
Endurance: About 220 hours
Standby time: About 280 hours
Impedance: 320
Rated input: 5v
Horn size: 11mm
Frequency response: 20hz-20khz
Transmission distance: About 10m
Charging interface: Type-c interface
Control mode smart touch
Noise reduction version: Cvc8.0

Package list: 

Headset+usb cable