Awei T2 TWS Sports Ear Hook Bluetooth Waterproof Wireless Headphones Mini Separate Stereo Headphones RedKey Features...Long standby time, about 200 hours, long calling time, about 5 hours.Support 4.2 Bluetooth version, advanced and convenient to use.USB charging interface, only need to charge about 1-2 hours, it will full charged.Portable Ear Hook design, perfect for sports activities.Product Desc..