Description: Conduction - conduction headphones work through vibration, and the sound is transmitted to your cochlea through the via . Compared with ordinary headphones, hearing damage can be avoided. bt 5.0: The conduction headset features the transmission distance up to 10m, lower power consumption, faster transmission speed noise reduction technology, it delivers crystal clear sound in music or call, even in complicated environment. Application: best choice for people who like to exercise outdoors such as running, hiking, bicycling, also for people who wear headphones all day that need to protect hearing. The band loops behind the head, close to the neck, so the size accommodates most customers. IPX5 Waterproof: The conduction headset is resistant to sweat and rain, making exercises freely. 360 Degree foldable, not easy to deform. Lightweight, comfortable to wear without Long Battery Life: 180mAh large capacity battery, the conduction headset features up to 13 hours of music/talk time, and only 2 hours of charging time. Specification: Name: Conduction headphones Material: ABS bt version: 5.0 Transmission distance: 10m without barrier Battery capacity: 180mA  Waterproof rating: IPX5 Play/talk time: 13 hours Size Chart: Package: 105x18x165mm/4.13x0.71x6.50inch Package Includes: 1 Piece  Conduction Headset 1 Piece Charging Cable 1 Piece User Manual Note: 1.Please allow 1~3 cm error due to manual measurement, thanks. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand, thank you