I have a few other tuners and they all are great. Today's technology is good enough to read frequencies with precision. What I like about this tuner is that it is red. Bright colors are more enjoyable than the traditional black plastic. This tuner reads both vibration of the clamp and air sound, but I only use it on string instruments in the vibration mode, but I whistled to it and it gave me some notes back, which I find entertaining. It may be a little confusing that the red bars stay lit up when you hit the desired note, but I've got used to it.