What's the worst thing about karaoke? Well, depending on the company, it's typically your friends' voices. Give them a much needed boost with the Singtrix. This all-in-one karaoke solution is powered by advanced audio technology that can strip/lower the vocals in any song and then let you sing over top using one of 350 effects. A special "Hit" effect button on the main unit and custom mic provides on-demand 4-part vocal harmonies, and an included 2.1 stereo speaker makes sure everyone can hear you loud and clear. And while it can work with pretty much any audio source with a headphone output, it's best when paired with the Singtrix app.