This mini stereo power amplifier provides up to 15 W of power on each channel at 4 ohms. Connect your inputs using the RCA jacks. Outputs over standard speaker push jacks. It?s compatible with any audio or computer device ? you can even hook up an iPod using a 3.5mm to RCA jack converter. Master volume control on the front lets you adjust the gain. Runs on 110 or 220 V.