Lepy LP268 DC12V 2x20W FM / MP3 Audio Power Amplifier   Features  Model: LP268 Brand: Lepy Power supply: DC12V-15V (power supply not included) Current: greater than or equal to 2A Impedance: 4-8 Ohm Nominal frequency: 20HZ-20KHZ Ingrewssi audio:   3.5mm RCA / AUX Shell material: aluminum alloy RMS power:   20Wx2 Signal-to-noise ratio : 75dB  Dimensions: 14x9,8x4,1 cm Input impedance: 47KOhm Sensi input balance: 270mV Functions: MP3 player, Radio FM