... by USB wireColors AvailableGreen, Blue, Red, OrangeConfigurations:1 Mini USB port2 On/off power switch3 Power indicatorTechinical Data:Rated ... more than 85dBFrequency response:100HZ-20KHZPacking Details:size: 70*50*33mminner box size: 120*100*45mmunit net weight: 54gunit gross ... is convenient for your travel ,portable, super slim and mini size, easy to carry4, Material: Pure ABS+ metal loudspeaker net ...