Bluetooth Mini Speaker. For Nokia Lumia Icon, Nokia Lumia 1520, Nokia Lumia 1020, Nokia Lumia 620, Nokia Lumia 925, Nokia Lumia 928 &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