Features: Ergonomically designed, comfortable to wear and not easy to fall out. Comes with a charging case which has long battery life, and can also work as a storage box. Automatic pairing after out of the charging box. Compatible with all BT-enabled devices. Employed BT5.0 technology, which provides instant and more stable connection. Binaural call and noise cancellation bring high definition sound, smooth and clear phone calls and pure music. 1 hour of charging can last about 8 hours of use and 150 hours of standby time. IP5 waterproof, no worry about sweat and rainy days.