48W PMPO Total 6W RMS 30mm full range speaker 4 ohms USB adapter (one side USB jack, one side stereo jack) Frequency response: 200Hz - 20kHz Earphone output Using either battery (4 AA cell) or adaptor Packing contents: 2 speakers 1 stereo ja... - Update: 2004-12-15

6 Watts RMS 32mm, 4ohm full range speaker x 2pcs Frequency response: 220hz - 20kHz Power input: DC 12V 500mA Detachable external battery pack 4AA size battery Surround Sound button -- Surround sound effect on speaker Bass Booter button -- bass ... - Update: 2004-12-15

6 Watts RMS 32mm, 4ohm full range speaker x 2pcs Frequency response: 220Hz to 20kHz Power input: DC 12V 500mA Surround Sound button -- Surround sound effect on speaker Bass Booter button -- bass effect on the speaker - Update: 2004-12-15

12 Watts RMS 32mm, 8 ohm full range speaker x 4pcs Frequency response: 220Hz to 20k Hz Power input: DC14V 0.8A Surround Sound button -- Surround sound effect on speaker Bass Booter button -- bass effect on the speaker - Update: 2004-12-15