Bluetooth Mini Speaker. For Sony Xperia Z Ultra, Sony Xperia Z1, Sony Xperia Z1 compact, Sony Xperia Z, Sony Xperia ZL, Sony Xperia TL, Sony Xperia U, Sony Xperia S &More Digital Devices. Digital USB and Stereo Cable Included. Built-In Microphone. Play Music | Complies with Bluetooth 3.0 10 meters / 30 feet range | Height: 2" Width: 4.25" Works with most bluetooth enabled devices 3 Hours of Working Time | About 25-30 Hours of Standby Time | Comes with detachable rechargeable lithium battery AUX Stereo Input function to work with non-bluetooth devices