Features: Elevates your experience with the PT2399 Karaoke Preamp, featuring a quality PT2399 digital delay chip for clear reverbs and enhanced sound quality in every performances. This versatile mixer board boasts double microphone inputs for simultaneous use, adjustable knobs for volumes, reverbs, and delay customization, and a compact design with DC12V power compatibility for easy setup. Ideal for beginners, singers, and groups, this user friendly device supports multiple users in interactive use like duets or choir practices, ensuring effortless operate for all skill levels. Perfect for diverse settings such as home karaoke parties, KTV lounges, and live stage evens, the Digital reverbs Board delivers professional enhancement in any environment. Compact and lightweight, this Microphone preamplifier offer portability for mobile or fixed installations, making it reliability for enhancing vocal performances with minimal effort. Specifications: Component: PCB, metal Size:Approx. 14.9x4.6cm/5.86x1.81inch Working voltages: DC12V Potentiometer distance: 20MM Mic distance:25mm Number of microphone interfaces: 2 Applicable scenario:Karaoke Party, Professional performances,Public speaking; Package Includes: 1pc Microphone Preamplifier 3pcs Connecting Cable note: Please allow 1-3cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.