I bought these to replace my tired old (wired) karaoke mics, and they are much better than I expected, to the point that I would happily use them at smaller gigs. In the hands of a more disciplined singer they sound quite muddy compared to a more expensive mic but for the price they are perfectly decent. The wireless range is good, and the controls are intuitive - press-and-hold for on/off eliminates accidental power switch incidents. The output signal is line level and will need padding at the mixing desk to prevent clipping. A nice extra, they come in a really nice foam-padded plastic case that holds microphones and receiver.