Dual Microphone Input: Karaoke reverb unit with dual microphone input, featuring a 1/4in input and output for mixing audio signals to TV, home theater systems, or other audio devices. Volume can be adjusted individually. 5 Rotating Knobs: Karaoke reverb unit has 5 rotating knobs for quick volume adjustment of your music, microphone, and audio output to your preferred level. Customize different parameters to reflect your unique style. Compatible: Digital karaoke reverb unit is compatible with TV devices, CD players, desktop computers, laptops, tablets, smartphones, DVD players, home theater systems, receivers, speakers, and more. Suitable Scenarios: Karaoke mixer outputs mixed audio signals to TV or home theater systems or other audio devices. Perfect for DJ music, events, venues, KTV rooms, home parties, etc. Enjoy instant karaoke fun effortlessly. Portable: Wireless karaoke mixer is portable, featuring a metal casing for durability and reliability. Its compact and lightweight design allows you to take it anywhere and enjoy karaoke or speech at any time.