Product information:

Bluetooth version: 5.0

Material: ABS + PC
Version: V5.0
Standby time: about 300 hours
Music time: about 4 hours (volume is set to 70%)
Music time with charging box: 25-30 hours
battery capacity:
400mah / 1.48wh (charging box)
30mah / 0.111wh (headphone)
Headphone nominal input: DC5V: 30mA
Nominal current consumption of earphone: 10mA
Rated input of charging box: DC5V = 400mA
Nominal current consumption of charging box: 80mA
Charging time: about 1.5 hours
Wireless charging time: about 2 hours
Frequency response range: 20HZ-20KHZ
Charging port: type-c
Suitable for: compatible with all wireless devices

Packing list：

Wireless Headphonesx1