Portable Stereo Bluetooth speaker with Voice Confirmation. 2 x 2.5" Neodymium Drivers and passive radiators for enhanced rich bass. On board microphone for clear, hands-free communications. 3D Button for expanded spacial audio performance. APT-X technology for CD quality audio. 3.5mm Aux in connector for added device compatibility. Built-in rechargeable Li-ion battery (10 hours battery life). Includes black and red Rugged interchangeable rubberized jackets.