Features: This professional karaoke microphones Preamp delivers clear sound with advanced delay and effects, ensuring precise sound amplification for superior vocal clear in any performances. Featuring a circuit board and plug and play design, it offer multiple settings and easy connectivity, providing strong and user friendly sound enhancement. Ideal for music enthusiasts and professional performers, this sound Amplifier Module caters to users of all skill levels seeking stable and accessible sound processing tools. Perfect for homes karaoke meeting , stage shows, and studio environments, it in diverse settings by delivering rich, layered sound for immersive entertainment experiences. With broad compatibility across various sound devices, this Board ensures seamless integration and stable performances, enhancing any setup instantly without technical hassles. Specifications: Component : ABS Size: about 38x110mm/1.5x4.33inch Package Includes: 1xReverberation Board note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.