Rated Impedance: 4Ohm+-0.5Ohm Output Power: 2Wi??1KHZi??THD10%i?? Supply Voltage: 3Vi??3~4.5V, 2*AAi?? Circuit Current: = =48dB - Update: 2007-11-02

1) Output: RMS 3W 2) Respond frequency: 275-20000Hz (A?3dB) 3) Voltage: DC 3V/500MA 4) Recharge: 2 no. 5 batteries, DC 9V/1,000MA AC power rotate, USB power rotate connect line 5) Compatible with MP3 players, MP4 players - Update: 2007-10-26

1) Output: RMS 4W (2W+2W) stereo 2) Respond frequency: 150-18000Hz (A��3dB) 3) Voltage: DC 9V/1,000MA 4) Recharge: 4 no. 7 batteries, DC 9V/1,000MA AC power rotate, USB power rotate connect line 5) Digital volume adjustment 6) Compatible ... - Update: 2007-11-02