SoundBot¨ SB210 Stereo Bluetooth 4.0 Wireless Musical Headset Beanie Headphone Hat for Music Streaming & Hands-Free Calling w/ 5hrs Music Playback, 8Hrs Talk Time, 60Hrs Standby Time, Built-in Mic & 33ft Range) Feature - SB210 musical headset beanie is thick, soft, and large enough to wear over ears and provides maximum comfort and mobility. - ONE SIZE fits most. Stretchable Material for comfortability and maximum fitness. - Features adjustable headset placement with velcro tape to fit almost head shape. - No-hassle removal design provides convenience for beanie washing. - Simple buttons interface for easy control calls and playing musics. - Built-in mic w/ crystal clear sound technoloty for hands-free calling. - Built-in easy-access MicroUSB charging port. (MicroUSB Cable included) - Supports Bluetooth A2DP, AVRCP, and HS/HF profiles. Pairs with all A2DP-enabled devices including smartphones, tablets, laptops, PC, digital media players, etcÉ - Effective range up to 10m (33ft) w/ free line of sight. - Long lasting battery performance with Up to 5 hours of music play time and 60 hours of standby time.