12V 2 CH Mini Digital Audio Power Amplifier AMP For HiFi MP3 Carn Kinter MA-170 With ZITRADES Original 3-Prong Power Supply BY ZITRADES With Colorful LED of Volume button Input Power: 12V DC Speaker Impedance: 4ohm to 16ohm RMS POWER: &lt;0.1 (1KHz) RCA Input for MP3