Features: Ultra small, easy carry. Fantastic sound, built-in mic. Full mental body, delicate touch. Compact and beauty. A perfect balance of space and sound quality. Minimalist design, one-touch button. Brand new CSR BT 4.0 technology, stable and energy-saving. Car hands-free call, clear and stable. Melodious music, leisuurely life. Tied by a lanyard, like a shadow follow you. Tele-conference, just like tallking face to face.