Bluetooth 5.3 Connectivity Ultra-low latency keeps synchronized with audio and video, convenient to keep in contact with your teammates all the time Wonderful Music Feast Built-in powerful 16.2mm driver unit, it can deliver 360deg surrounding sound quality, let you listen to wonderful music Noise Cancelling Design Use ENC noise cancelling chip to isolate external noise, allowing you to have a quiet environment and enjoy more crystal-clear music Comfortable to Use 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 Design Designed with waterproof shell to professionally protect the interior from the influence of water and sweat and prolong the service life Specification Bluetooth chip JL6983D4 Bluetooth version Bluetooth V5.3 Bluetooth protocols HFP, SMP, A2DP, AVRCP, SPP, PBAP, SDP Transmission distance straight line ge 10 meters Battery capacity charging bin 300mAh earphone 110mAh2 Music playback time about 14 hours Talk time about 9 hours Charging time about 2 hours Charging interface Type-C, DC 5V 300mA Speaker phi16.2mm, 32Omega OWS speaker Waterproof level IPX4