1.Speaker units: iron, 45mm, 4Ω and 3W
Product dimensions: 90 x 59 x 100mm
2.Shell: ABS plastic
3.USB interface: hi-speed USB 2.0
4.Available colors: white, green, red and yellow
5.Controls provided: volume
6.Input jack: stereo plug
7.Output jack: stereo socket
8.Power supply: USB 5V or battery
9.Frequency response range: 80Hz to 20KHz
10.Power output (RMS): 2.5W
11.S/N: >85dB
12.Separation L/R: >45dB
13.Input sensitivity: 220mV
14.Low distortion: 0.5%