•IP68 waterproof headphone , for swimming and sports •Open bone conduction technology, a good partner for sports and listening to music •Built-in 16G storage, support Bluetooth + MP3 playback dual mode •Open ears, soft silicone, skin-friendly and comfortable •One-piece body, non-porous design, fully covered with waterproof materials •Using a high-frequency intelligent sound-generating motor, it can intelligently adjust the vibration frequency according to the song and emit sound through the vibration of the skull without loss •Open both ears to maintain awareness of the surrounding environment and conduct sound through the ear bones •BT 5.1 intelligent continuous connection, Bluetooth/MP3 dual mode, support local playback •Lightweight and stable, can not be thrown away, to meet the sports needs of different occasions •Humanized design, streamlined design, compatible without glasses •Magnetic charging method, fully enclosed structure design, flat interface without dead ends, rain and sweat can not penetrate, greatly improved waterproof performance •Quick blind operation with one hand, intimate voice prompts, easy mode switching and song selection Specification: •Bluetooth version: BT 5.1 •Bluetooth effective distance: about 15 meters •Waterproof grade: IP68 •Charging time: about 1.5 hours •Battery capacity: 3.7V 160mAh •Music time: 5 hours •Talk time: 4 hours •Memory capacity: 16GB memory card •Function: call, listen to music •How to use: ear hook •Chip Type: JL Package included: •1 x Headphone •1 x Charging Cable •1 x English and Chinese Manual