Exisiting since 2010, Impro USA has been manufacturing excellent karaoke mixing amplifiers with built in equalizer and 3 way vocal karaoke speakers. In 2018 they introduced their portable wireless microphones for powered speakers. These microphones are rechargeable with a powerful sound. For all karaoke lovers, Impro USA offers high quality and pure sounds. You will not be disappointed with the quality of our products. We are dedicated to providing you with top notch customer service