Democracy Revolving Wireless Bluetooth Portable Stereo Mini Speaker w/Microphone Bluetooth Wireless Audio Profile (A2DP), Wireless Capability 33 feet connectivity range, 3.0 + EDR Class II Wireless Technology, Hands-free Profile supporting speakerphone for use with iPhone, iPad, Smartphone's, tablets, laptops and other Bluetooth enabled devices. Revolving Axis System (Patented) for optimum music enjoyment, a permanent speaker position is not ideal. Our exclusive three-position Revolving Axis System intelligently enables an ergonomic solution to enhance the music experience just by a single twist of the wrist. With a sharp, powerful, built-in microphone, The DEMOCRACY Bluetooth Speaker frees you to share crystal clear conference calls anywhere in the office, car, at home, alone or with a group. It's also perfect for sharing video chats via iChat, Skype, Google Talk and more. Rechargeable Lithium-Ion Battery; Best-in-class built-in battery with up to 8 hours of music play time eliminates the need to carry bulky power supplies while looking for outlets to plug in. The rechargeable battery is efficient and frees your speaker of wires for maximum versatility whether indoor or outdoor. NEOMAG Technology, The heart and soul of the 50 mm driver is a neodymium motor structure that holds a much stronger magnetic field than a traditional ceramic magnet. This innovative magnetic system leaves a powerful impression with diamond clear room-filling sound and the least possible distortion.