Avantree Sacool, a Bluetooth stereo headset featuring stylish design and splash proof for outdoor use. With high-fidelity stereo sound for both music and crystal clear sound talk, this tiny Bluetooth stereo headset offers 5hrs talk time and 5hrs music time. Lightweithg, only 18g. It is comfortable and easy to carry. Securely for your complete listening enjoyment with avantree sacool Bluetooth stereo headset.