Bluetooth 5.3 Connectivity: Ultra-low latency keeps synchronized with audio and video, convenient to keep in contact with your teammates all the time Touch Control: High sensitivity, smart touch control, easy to answer phone calls, pause music with a few taps Ear Hook Design: No need to jam the earphones into the ear, so as to better protect the hearing. Unlike in-ear headphones, it allows you to keep in touch and understand the surrounding environment to ensure safety Waterproof Earphones: Designed with waterproof shell to professionally protect the interior from the influence of water and sweat and prolong the service life Specification: Bluetooth chip: JL6973D4, ENC Bluetooth version: Bluetooth V5.3 Bluetooth protocols: HFP, SMP, A2DP, AVRCP, SPP, PBAP, SDP Transmission distance: ≥10m (straight line distance) Battery capacity: charging bin: 300mAh; earphone: 110mAh*2 Music playback time: about 14 hours Talk time: about 9 hours Charging time: about 2 hours Charging interface: Type-C, DC 5V 300mA Speaker: 16mm (diameter), 32Ω OWS Waterproof level: IPX5