Docooler Audio Power Amplifier Muslady Dual-channel Module 120W + 120W Digital Stereo Amp Board Amplify DIY Circuit Board for Car Vehicle Computer Speaker DIY Sound System Features: Dual-channel digital audio amplifier module with DC 12-26V working voltage & 120W + 120W output power. Heatsink chips with array construction mounted on the surface of the module for easier and quicker heat dissipation. With inductance for filtering noise and suppressing electromagnetic interference; also with aluminum electrolytic capacitor and metallized polyester film capacitors Features over 90% high efficiency and low idle loss characteristic, and with comprehensive protection of short-circuit, over-heat, over/low voltage and direct current. Great for DIY sound system; high power broadcast; home theater; music playing on the street/ square/ shopping mall sound amplifySpecifications: Efficiency: >90% Total harmonic distortion & Noise: <0.2% Working voltage: DC 12-26V Output power: 120W stereo Item Size: 9.2 * 6.8cm / 3.6 * 2.8in Item Weight: 68g / 2.4ozPackage List: 1 * Amplifier Board 1 * Connection Cable