Enhanced audio and bass response Vibrating call alert A2DP Voice Compatible Advanced multipoint Noise reduction Echo cancellation 4.0 Bluetooth with 33 foot range Audible battery status alert Microphone mute Audible pairing assistance Auto-reconnect Talk time up to 15 hrs Music play time up to 10 hrs Stand by time up to 500 hours Memory Flex neck band Magnetic earbud storage Controls on headset for track advancment, volume, play/pause, answer call and power