Portable, compact design with durable Aluminum alloy body. 3 Watt speaker with operating range of 30 feet and easy access volume control. Expanded BXS (Bass Xpansion System) drives a fuller, richer low-end response for superb, high definition sound. Supports phone laptop tablet, PC and TF card function for smartphone (Mini micro card). 500mAh Lithium Polymer battery provides 5 hours run time on full charge; battery charge time – 2hrs. CE and FCC compliant. USB charging cord included