ITEM NAME:DC12V Aluminum Alloy Auto Stable Power Amplifier Car Home Black Music Receiver Description: Mini HIFI audio power amplifier.Two main channel output. Left and right channel outputs are interfaces for speakers or speakers. Low distortion supplies a clearer, stronger and more powerful sound. Made up of aluminum alloy body, thick, feel is also very good. Large knobs are designed with blue LED lights tomake the products morebeautiful and beautiful. Specifications: Product name: Power Amplifier Model: AK170 Color: Black Material: Aluminum Alloy Input voltage: DC 12V RMS power: 20W+20W Channel: 2CH Load impedance: 4-16ÃŽ © SNR: >90 db Frequency: 20Hz-20KHz Distortion rate: 0.01% Size: About  125 x 75 x 40mm(L*W*H) Package Included: 1PC x Power Amplifier 1PC x User Manual Note: Transition: 1cm=10mm=0.39inch 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement..1PC x Power Amplifier. Made up of aluminum alloy body, thick, feel is also very good. Material: Aluminum Alloy. Mini HIFI audio power amplifier.Two main channel output. Low distortion supplies a clearer, stronger and more powerful sound.