WIWU GB05 Flex Wireless headphones

WIWU GB05 Flex Wireless headphones

Material: ABS
Bluetooth: V5.3
chip:JL 7003
Transmission frequency:2.4GHz-2.48GHz
Battery: 400mAh
Charging time 3hours
Working Time: 40H for phone call, 40h for music play; Standby time 400H