Connection Type: Wireless Earphone, Headphone, & Headset Type: In Ear Audio Compatibility: Mobile Sports Focused: Yes Talking Time: About 2-3 hours Standby Time: About 12 hours Charging Time: About 2 hours Wireless distance: Within 10 meters Charging box battery: 300mAh Li-ion battery Bluetooth version: 5.0 Control Method: Button Battery: 40 mAh per earphone.