Description:Bone conduction: This headphone is designed in an open-ear style, you can wear the headset on your head easily without feeling uncomfortable or painful, not easy to make trouble for you.Wireless: This earphone works with bluetooth-compatible V5.0 technology, which ensures a good connection and stable transmission, you can enjoy music quickly, and the effective transferring distance is about 10m.Rechargeable: Built-in with a 350mAh battery, the headset can be charged easily, and it can be used for about 6-8 hours after fully charged, enough to meet your daily needs,Wide use: This earphone is designed with built-in 16GB memory, convenient for you to store music songs, and it supports MA3, WMA, WAV, APE and FLAC formats, you can order without worries.Waterproof: This IPX8 earphone can resist water and sweat effectively, preventing water to prolong the service time, you do not need to change it frequently.Specification:Color: gray, blue, dark blue, red, black.Size: show as pictures.Bluetooth-compatible version: V5.0.Effective distance: approx. 10m/393.7inch.Memory: 16GB.Frequency: 20HZ-20KHZ.Battery: 350mAh.Charging time: about 2h.Work time: 6-8h.Waterproof: IPX8.Music format: MA3, WMA, WAV, APE, FLAC.Note:Due to the light and screen difference, the item's color may be slightly different from the pictures. Please allow a slight deviation for the measurement data and make sure you do not mind before ordering.Package Includes:1 Piece Earphone(with 1 Piece Charging Cable).