Wireless Headphone 5.0 Touch Screen Sports Waterproof Bluetooth Earphone HiFi 9D Bass Stereo Headphone with Mic

Wireless Headphone 5.0 Touch Screen Sports Waterproof Bluetooth Earphone HiFi 9D Bass Stereo Headphone with Mic

Speaker parameters:

Bluetooth version: Bluetooth V5.0 Headphone capacity: 50mAh Charging box capacity: 500mAh Charging current: ≥40mA Play/talk time: about 4 hours Charging time: about 1.5 hours Standby time: 75 hours Bluetooth effective range : ≥10M Speaker Power: 3mW Rated Frequency Response: 50Hz~20kHz