2pcs TPA3116D2 Class D Stereo DC 5V—24V 2x50W High Power- Digital Audio Amplifier- Subwoofer Power Amplifier Board- Suitable for Home Audio?car Speakers- DIY

Instructions:  1. Power supply voltage: DC4.5V-26V (24V is recommended) 2. Connect the power supply (positive pole to VCC, negative pole to GND). 3. Audio input, 3.5 mm audio port input, or right channel to IN-R, left channel to IN-L, and ground wire to GND. 4. Output R+R- and L+L- correspond to the speaker. Product Features: Power supply voltage: DC4.5V-26V (24V is recommended) Dual channel: 2*50W Magnification: Class D Noise ratio: 102dB Switching frequency: 1.2MHz Stereo: Yes, dual channel Input reverse connection protection: Yes Overvoltage/low pressure protection: Yes Appearance size: 78×51.5×22.5mm (3.07×2.03×0.89inch) Applies to: Store drainage, home theater, bookshelf audio, car speakers, DIY audio, etc. Package contains: 2 pcs TPA3116D2 Class D audio power amplifier