Compact: Slightly larger than a golf ball</br>Incredible audio / bass response - Bluetooth and charging indicators</br>Built-in mic to receive & make calls</br>Aux In for optional wired connection - Charges via micro USB port (cord and adapter included)</br>Built-in rechargeable battery (3 hours)</br></br>Product Description</br></br>The Mini Mobile speaker delivers rich?? precision tuned sound?? and its Bluetooth! Includes a built-in mic to take calls?? play/pause & volume buttons?? and a 3 hour battery life! Just grab it and go -all the sound you could need in the palm of your hand!</br><br/>http://www.amazon.com/gp/product/B00N311DHM