G-Color&reg; H4 Bluetooth Wireless Sport Headphones / Headset Running [Hi-Fi Music, Clear Call] (Black) Bluetooth stereo headset for sports, Long music time up to 8 hours, 9 hours talk time,16 days standby time For stereo music and phone calls with built in microphone. Music controls include play, pause, next track and previous track. Phone call controls include; answer, reject call. Music will automatically pause and then resume after phone call. Behind-the-head design eliminates tangles and provides a light, comfortable fit Light (20g) , compact (hold in your palm), comfortable, secure and easy to carry