EC Technology 6W Dual-Driver Portable Bluetooth STEREO Speaker, 15 Hour Playtime, Built in Cell Phone/Car Speakerphones -Black Incredible sound quality surprising fullness realized through 2*3W driver, distinctive Cavity Design. The Bluetooth 2.1 technology Easy connection works with all Bluetooth-enabled devices; equipped with a 3.5mm audio jack for non-Bluetooth devices. Unrivalled 10 to 15-hour playtime powered by a built-in rechargeable 1500mAh Li-Polymer battery. Outstanding connection range of up to 33 feet, double as a speaker phone. Package contents: EC Technology Portable Bluetooth Speaker, USB cable, 3.5mm audio cable.