1) Input sensitivity: 500mV
2) Output power: 2W x 2 8 (OHM) 10% TDH
3) Speaker: 1.25" x 4.4 (OHM) 3W
4) Iron frame and built-in speaker
5) Function: vol+ vol- control, power, switch
6) AA size battery (not included)
7) Out-link power
8) System response: 60Hz -18kHz +/- 3dB
9) Fit for all iPod except shuffle
10) Dimensions: 205 x 138 x 30mm