3.0V 3 watt wireless speaker,Use the double ended mini USB cord to either plug into a 3.5mm audio jack for music or the USB end to charge the battery,SD card slot,Buttons on top and back for volume, next and power,built-in mic for hands-free calls works with most Bluetooth® enabled devices,10 metre (33 feet) wireless range,600Ma rechargeable battery,FCC certified,Play time: up to 4 hours,Instructions included,Individually retail packaged,ABS Plastic