... audio player2 Easy charging-can be automatically charged by USB wireColors AvailableGreen, Blue, Red, OrangeConfigurations:1 ... Power indicatorTechinical Data:Rated power: 2WMaximax power: 2.2WSNR: more than 85dBFrequency response:100HZ-20KHZPacking ... tone quality,with wallyson dual channel stereo.2, USB power supply.3, It is convenient ... Pure ABS+ metal loudspeaker net USB 2.0 mini computer speakers