Output channels: 2 channels 
Can use with Mobiles,Mp3 Players, Ipods with 3.5mm jack
Rated power:  (3 W x 2) 
Impedance: 4 Ω 
Frequency response: 150 Hz ~ 12 KHz 
PC Connection: 3.5 mm (stereo) 
With Volume Control 
Led Indicator
Power: USB 
Package Size: 22x10x15.8cm