Wireless 5.0 Headphone Touch Control Sports Waterproof Bluetooth Earphone HiFi 9D Bass Stereo Earphone Headset With Microphone

Earphone parameters:

Bluetooth version: Bluetooth V5.0 Headphone capacity: 50mAH Charging bin capacity: 500mAH Charging current: ≤40mA Play/talk time: about 4 hours Charging time: about 1.5 hours Standby Time: 75 hours Bluetooth effective range: ≤10 meters The speaker power: Rating 3mW Frequency response: 50Hz～20KHz