Phone Mount Holder Advanced Bluetooth 3.0 ability allows you to play music from any device, even answer your calls with the built-in Bluetooth mic. Lithium Ion battery gives you 5 hours of continuous use on a single charge! Features increased volume range, crystal clear sound quality and powerful bass. Includes: USB Cable, 3.5mm AUX Cable, SD card slot and custom carrying bag. Specs: Frequency Response: 60Hz-18KHz. Output Power: 3.0W.