Product Name: Headphones Headphone type: both left and right ears can be used; Bluetooth-compatible version: V5.2+EDR; Bluetooth-compatible mode: hands-free/headset; Supported protocols: HEP/HSP/A2D/AVRCP; Transmission range: more than 10 meters; Battery type: 60mA rechargeable lithium battery; Charging time: about 1h-2h; Working time: 5-6 hours of music (volume will affect the time); Standby time: about 100-150 hours; Frequency range: 2.40-2.48GHz; Distortion coefficient: ≤1%; Frequency response: 20Hz-20KHz; Wearing method: in-ear/invisible earphones;
