Pyle 90 Watts Class T Hi-Fi Stereo Amplifier W/Adapter. "Power Main: 45 x 2 WattsClass T Circuit Design 12V, 2A Ac/Dc Adapter 3.5MM iPod/MP3 Input Jack Microphone Input Jack Short Cut, Overload, Overheat Protection Dimensions: 6.02'' x 4.96'' x 1.5''