Features: Brand new and high quality Experience powerful sound with our versatile DIY amplifier board, delivering an impressive 30W/20W output. Customize and build your own portable speakers effortless with this convenient module. Designed for music enthusiasts of all genders, our amplifier board is perfect for those who appreciate great Sound experiences. Whether at home, in office, or during outdoor activities, our amplifier board enhances your speaker setup in any environment. Unleash your creativity and create extraordinary speakers with our DIY amplifier board, making every moment enjoyable. Specifications: Power amplifier board size: 7.1x4.3cm Fixed hole distance: 6.6x3.8cm Bluetooth-compatible5.0 At 16V4A, the output power is 30W At 12V4A, the output power is 20W Package Includes: 1x Bluetooth-compatible Amplifier Board note: No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!