Compete in intense sports and never worry about any annoying cables or losing a bud. The ergonomic clip easily fits around your neck and stays on as you move around. The built in microphone allows for phone calls to be taken through the headset for hands free convenience. Never miss a beat, the Bluetooth headphone clip has controls placed on it for phone calls, volume, and music control. The long lasting battery life allows up to 8 hours of music, 10 hours of talking time, and 300 hours of standby.