ITEM NAME:DC 12V Mini 2x25W 2 Channel Stereo Audio Speaker Amplifier with 3.5mm Audio Description: High quality RCA input/output socket. Power switch, with USB port for MP3,MP4 charge. Volume 7 color LED display,with FM radio:87-108MHZ. Treble, Bass, Balance, Volume control. Supply voltageï ¼Å¡12-14.4V DC 3-5A. Specification: Technical parameter: Total harmonic distortion: ï ¼Å“0.4% S/Nï ¼Å¡75dB. Frequency Responseï ¼Å¡29ï ½Å¾18KHz distortionï ¼Å¡Ã¯ ¼Å“0.1(1KHz) Output Powerï ¼Å¡RMS 25W X 2CH ï ¼Ë†AT 14.4V DC INPUTï ¼â€° Size: 112x90x38mm Package Includes: 1 Piece Audio Amplifier SKU: DMO0015009363020703.1 Piece Audio Amplifier. Output Powerï ¼Å¡RMS 25W X 2CH ï ¼Ë†AT 14.4V DC INPUTï ¼â€°. People always bought together with. Size: 112x90x38mm.