Features: Immersing yourself in quality sound with the TDA7377 Amplifier Board. Enjoy stable performances and impressive stereo output for your speaker. Crafted with quality materials, this amplifier board features a circuit board and capacitors for excellent performances. For music enthusiasts, the TDA7377 Amplifier Board delivers impressive sound with its channel design. Upgrades your system with this amplifier board. Perfect for enhancing setups, powering your speaker. Create a pleasant music atmosphere in your study, office with the TDA7377 Amplifier Board. Its user friendly design makes it easy to integrate. Specifications: Material: Metal, ABS Input: DC12V 2-5A Output: 2x35W Chip: TDA7377 Output Resistance: 4-8Ω Channel: 2 Channel Mounting Hole Diameter: 3mm Mounting Hole Distance: 85x85mm Connector: DC5.5x2.1 Size: About. 110x113x78mm/4.33x4.45x3.07in Package Includes: 1 Set Amplifier Board note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.