Specifications:Color: BlueType: Support bluetoothInput voltage: 220V-240V 50/60Hz 12V(in car)Plug: US plugRated power: 80W+80WPeak power: 300W+300WChannel: 2 CHLoad impedance: 4-16ΩSNR: >90 dbFM frequency: 88-108MHzDistoration rate: 0.05%Frequency: 20Hz-20KHz(±3dB)Total harmonic distortion: less than 0.5% (normal operating conditions)Signal input sensitivity: 200MV (±30MV)MIC input sensitivity: 9mV (±2mV)Record level output: 1VAuxiliary output level: 1VSensitivity: 0.25mV-220mVRC power supply: CR2052 battery(built-in) Features:-Mini HIFI digital bluetooth audio power amplifier.-SD Card, U disk, MP3 format play, support bluetooth wireless connection.-Supports FM stereo radio.-Two microphone input slot, karaoke system in your home or in car.-With treble, bass, and volume control, very easy to use.-Low distortion supplies a clearer, stronger and more powerful sound.-Two main channel output.-With Remote control function.-DC/ AC power in, Suitable foe home or your car. Package Included:1 x Audio Amplifier