I’ve been out of the music scene for awhile so when my son decided to play guitar one of first things we had to get was a tuner. The tuner I remember was the one’s you plug into your guitar. So, when I went to order a tuner I ran across these tuners. I decided to get one after some research and determining this is the evolution of the tuner. I was still a bit skeptical until I used it. We were able to tune the guitar within a couple minutes, wow! The device just clips on top of the guitar and go ahead and start plucking those strings. I also choose this model with a mic so I can use it to tune other instruments like any woodwind. It’s also sturdy and small which is a plus especially if you have a lot of gear. If you need a guitar tuner, I recommend this one.