Mini Dual Amplifier * 2x8w 1% thd & 2x40w max. * power on/off switch & led indicator * master volume control * treble & bass controls * push type speaker output * compatible w/any audio/computerize devices * (mp3)via 3.5mm to rca converter * rca jack input * 110/220 voltage selector * dimensions: 6.3''w x 2..72''h x 4.72''d