New Ear-Mounted Noise-Cancelling Wireless Bluetooth Headset TWS In-Ear Sports Waterproof Gaming HeadsetItem number: q 25 Transmission range: 15 meters Function: wireless charging, noise reduction, power display, call function, NFC function, voice control, support music Bluetooth protocol: 5. 1 Channel: Stereo How to use: hanging ear type Whether single or binaural: bilateral stereo Chip Type: Jerry Battery life: 12 (hours) Use play time: about 4 hours (80% volume) *Standby time: 80 hours Charging time: about 1 hour Battery: Headphone: 50mAh Charging