Delivering on the promise of "Sound Beyond Size", the KB Covers X-Mini II Capsule Speaker is petite in size but big in sound. You can hook it up to your mobile phone, MP3 player or laptop to create a pocket-size boombox. Pump out your tunes with crisp clear acoustics when you use this red X-Mini Capsule Speaker. This X-Mini capsule speaker comes in an attractive yet small, compact design, making it easy to carry around. It features a large 40mm driver and a built-in high-capacity rechargeable battery for convenience. This portable capsule speaker can be charged through your USB port, and it offers a playback time of 11 hours. This KB also features a modular "Buddy-Jack" design.