Fangrui Product Details Features: Aluminum Casing With Good Heat Dissipation And Delicate Metal . The Sound Effect The Machine, Creating A Shocking And Good Sound Quality . Low Distortion, 80wx4 Max Power Output To Improve The Sound Quality Of Your Machine. Hifi Level Chip Matching Bring Clear And Pleasant High-quality Music. Eq Sound Effects Adjustment Support Various Sound Effects Such As /rock/classical Music To Satisfy Your Music Enjoyment.suitable For Most Of Android System Car Radio Stereo, Conveinent Intallation Without Breaking . Specification: Model: Ry-125ab Dc Input: 12v-18v 3a Jack Input: 1/8inch(standard Stereo Jack) Sine Ratio: 80db Rated Rms Power: 0. At 1khz Speaker Impedance: 4-8ohm Voltage: 12v Output Power: 80wx4 Eq Adjustment: Support Sensitivity: 0.25mv-50mv Input Impedance: 47k Frequency Response: 20hz-20khz Material: Metal Colour: Black Package Contents: 1 X Amplifier Box Only The Above Package Content, Other Products Are Not Included. Note: Light Reflection And Different Displays May Cause The Color