SoundBot SB735 Wireless Bluetooth 4.0 Wireless Stereo Headset with Built-in Mic Full featured and one of a kind stylish design that turns the headset into a wearable fashion accessory with state-of-the-art 9mm audio driver to deliver Hi-Fi potent base, crystal clear calls, and HD dynamic music listening experiences. Ultra lightweight on the ears with around the neck design in flexible and bendable collar body frame toprovide maximum portability, comfort, and mobility.Sweat proof feature ideal for casual or sports active users with indoor and outdoor usage, or any other occasions. Intuitive voice prompt and smart vibration/voice alert for calls and music playback. Hassle-Free magnetic earbud compartment to keep the wires organized. Stereo Bluetooth headset with latest (backward compatible) Bluetooth 4.0 &Multi-point connection technology supports simultaneous pairing to two Bluetooth enabled devices at once. Battery gaugeindicator on supported iOS devices includingApple iPhone, iPad, or iPod.Built-in Lithium-ion rechargeable battery for 150hrs of standby and up to 10hrs of music streaming.