Features: Wireless BT 5.0 ensures transmitting strong signals in high quality and high speed, delivering high-fidelity music. In-ear headset with ear-hook, brings you immersed music enjoyment and not easy to fall. Built-in microphone enables hands-free calls to set free your hands when doing sports. It also supports multi-point technology. Easily control playing/pausing, adjusting the volume, previous/next songs, answering/rejecting / ending calls. Ergonomic design guarantees wearing stable and comfortable when exercising, running, climbing and other outdoor sports.