Dimension:19*12.5*3cm

Input sensitivity:500mV         
Output Power:2W*2 8(OHM) 10% TDH          
Speaker:1.25inch*4,4(OHM) 3W        
Function: Vol+ Vol- Control, Power, SwitchAA Size Battery (not included)        
System Response:60Hz -18KHz +/- 3dB    
For all iPod socket,with remote control