For music, computers and phones / High quality stereo audio and an array of connectivity options / Supports the latest Bluetooth mobile phones Stereo Speakers and Microphone are built in External Microphone Input at rear of device to increase microphone range for Conference calls 10 hours of Talk Time at half volume, 5 hours at full volume, 48 hours Standby Time Supports A2DP, AVRCP, Headset and Handsfree Bluetooth Profiles Digital Signal Processor (DSP) with Echo Suppression and Noise Cancellation No wire, no mess, 100% portable Can be used with VOIP applications on Bluetooth enabled PC or Macintosh Pairs with up to 8 devices High Quality Stereo Sound, Full Duplex Functionality Keeps mobile phone radiation away from your head for health conscious people Magnets on the rear of the device allow you to attach the speakers to any metal surface Compatible with Bluetooth Mobile Phones, Smartphones, PDAs and VOIP applications