SoundBot SB733 Stereo Bluetooth Wireless Headphone with Multi-Point Connectivity, A2DP Technology, Enhanced Audio & Bass Response, Built-in Mic, & Smart Vibration Alert. Black Latest Bluetooth (backward compatible) 4.0 wireless standard w/ enhancedaudio and bass response to deliver crystal-clear high note, dynamic mid range, and deep bass for optimal music playback streaming experience and clear voice calls. Ultrafeather-lightweight on the ears with around-the-neck human engineering ergonomic designin flexible and bendablecollar body neck band frame to provide maximum comfort, mobility, and portability for both outdoor and indoor use. Intuitive Smart Vibration Alert, cable management clinch, and hidden magnetic hassle-free magnetic chamber to keep the wires intact, seamlessly store, and conveniently locate the earbuds as needed. Universal compatibility stereo headset with multi-pointconnection technology supports simultaneous pairing to two devices with all compatible Bluetooth enabled devices from up to 33 feet away.Itsone of akind stylish appearance turns the headset into a wearable fashion accessory. Battery level indicator on supported iOS devices including iPhone, iPad, or iPod. Built-in lithium-ion rechargeable battery for up to 10hrs of talktime/music streaming and 15days of standby time.