Overview: [ONE-CLICK MANIPULATION AND WATERPROOF] After connected, you can control your music and volume or you can accept and reject calls with just one button, really wireless. With waterproof technology, the earphones function well in intense sweat. You can enjoy your life without any worries. Specifications: Transmission range: 10 meters Function: battery display, call function, support for music, multi-point connection Bluetooth protocol: 5.0 Channel: stereo Usage: hanging ear type Single or dual-ear: bilateral stereo Package Content Earphone x1