Britelink (TM) Necklace Bluetooth Stereo Headset with Microphone Necklace strap style, cutting edge aluminous housing design, small size, light weight, comfortable to wear Supports Bluetooth A2DP, AVRCP, and HS/HF profiles Features Software & CVC echo/noise cancellation for reducing noise Wirelessly enjoy stereo music from all A2DP-enabled devices, such mobile phones, PDA, PC etc Switch automatically between music and mobile phone call