Singtrix made waves on 'Shark Tank' thanks to its origins in the development of 'Guitar Hero,' but it wasn't all smooth ...

Two wireless mics, Dolby Atmos sound, and a light show take you from home theater to party mode in seconds for just $198.

I'm sure there's a local karaoke club or karaoke singing night at a bar or club. The requirements for starting a karaoke DJ service are basic: You need karaoke equipment, a good music selection ...