Features: Delivering 2x50W power output with efficiency, the TPA3116D2 digital amplifier board drive demanding loudspeaker while minimizing heat generation Suitable for audiophiles, car sound enthusiasts, and needing power amplification in space constrained installations like vehicle sound or home theater builds. Optimized for automotive upgrades, desktop loudspeaker enhancements, and Hifi projects requiring with integrated heat dissipation solution. This sound board simplifies integration through standardized terminal connection while supporting continuous 24V operational via optimized thermal management. Suitable for car speakers, computer speakers, home loudspeaker, other occasions to meet the need of different users. Specifications: Component:Plastic Size: Approx.50x79mm/0.19x3.11inch Working: 9-25V Output power: 12V: 15W×2 (4Ω) | 10W×2 (8Ω) 24V:>32W×2 (8Ω) | 39W×2 (4Ω) Package Includes: 1 Set Power Amplifier Board note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.