Today there are more options than ever before to enjoy music. Whether ich's-Pod, another MP3 player, computer or other more traditional source, this is the ideal speaker system. Compared with solid designs, JVC is much better choice with separate main speakers that can be arranged for the best stereo response, and a separate subwoofer placed where bass response is best at. Since it is "done for I-Pod", you can use any I-Pod with the supplied cable. Other MP3 players and flash memory devices through the front USB Host. Computers can be connected via the back USB audio input. Conventional analog two-channel auxiliary input is also available for portable CD players and other traditional audio sources with headphone output. Description: Connects to the iPod - to connect, control and charge your iPod. Enjoy your music files through the speaker system for greater listening pleasure, USB Hosting - All-digital connection with digital audio player (for MP3/WMA playback), USB audio input for receiving signals from a PC before the AUX input for easy connection to external devices, output power: 50 watts total power (RMS).