m9

Model: M9 Bluetooth version 5.1: Noise reduction version: cvc8.0 Operating distance: 10m Headphone battery capacity: 50mah (each) Charging cabin battery capacity: 2000mAh Auto power on: support Automatic adaptation: Support Endurance time: about 220 hours total (to use with cargo container) Talk time: about 180 hours in total (to use with cargo container) Headphone charging: about 40 times the charging container input current: 5A 1A Control mode: touch operation Color: black