Pyle Pro's mini stereo amplifier was designed with today's music lover in mind. The PCA2's smart, compact design fits neatly on top of a computer tower or next to your laptop to power personal audio speakers. Produces 40 watts of power per channel. MP3 player or iPod headphone outputs may also be used as an amplifier source with the use of a 3.5 mm stereo plug to dual RCA jack adapter. Has a power on/off switch and LED indicator. System measures 6.3" W x 2.72" H x 4.72" D.