i.Sound ISOUND-5271 White iGlowSoundPro Wireless Bluetooth Speaker And Speakerphone With 3 Different Light Dancing Modes And Rechargeable Battery Type: Bluetooth Portable Speaker Bluetooth Version: 2.0 Battery: 2000mAh Rechargeable li-polymer battery Specifications: Power Output: 3W x 2 USB output port (5V/1A), with overcurrent protection Speaker frequency range: 20Hz - 20KHz Driver size: 50mm x 2 Includes: iGlowSound Pro Speaker AC Adapter Audio cable User guide Compatibility: Universal Dimensions: 10.00 x 14.25 x x 4.00 Weight: 3.70 lbs.