Description: 【Channel Digital Amplifier Board】: Enjoy powerful and immersive sound with 2.1 channel output, supporting speakers from 20W to 100W (4–8Ω), and delivering up to 50W per channel plus a subwoofer output of up to 100W 【Universal Fitment】: The Digital Power Amplifier Board features advanced 5.0 technology for stable wireless connections up to 10 meters, along with versatile input options including AUX, MIC, radio, USB, and TF card 【High Performane】: The Channel Power Amplifier Board is built in protection mechanisms protect your device against over v, under v, overheating, /DC detection errors, and short circuits for reliable performance 【Quality Material】: The Digital Power Amplifier Board is crafted from premium ABS plastic and metal materials with excellent surface treatment, plus efficient heat dissipation thanks to integrated heatsink design 【Versatile Use】: The Channel Digital Amplifier Board is universally suitable for smartphones, computers, CD players and more; powered by DC12–24V/5A+ (higher v delivers greater output) With size 26 cmx8.5 cmx7.5 cm/10.24 inchx3.35 inchx2.95 inch. Remote control requires two AAA batteries (not included) Specification: Material: ABS Plastic Metal Size Chart: 26 cmx8.5 cmx7.5 cm/10.24 inchx3.35 inchx2.95 inch Package Includes: 1 Set Channel Power Amplifier Board Note: Please allow slightly errors due to manual measurement and different monitors.