H819 ANC Headphone
Colour
Features:
ANC : 20db
Bluetooth version: V5.0
Frequency range : 2.4GHz-2.48GHz
Transmitted power :Class 2
Working Range :Around 10m
Charging Voltage :5V 0.5A
Operating voltage :3.7V
Standby current :<10uA
Music time : up to 15H
Talk Time:up to 15H
ANC on only : up to 40hours
Standby Time :>200H
Charging time :<.2H
Speaker :Φ 40mm/32Ω
Output power :>8mW
Output Frequeney :40Hz-20KHz
Battery : Built-in lithium battery 400mA