great and free

So good,first i want to buy guitar tuner!,and find this one ,It is enough, save my money ,Thanks. I use bluetooth to like the photo . and it can keep in 0.1-0.3 cent,so magical tuner ,before ,i only can keep my guitar in +3 cent , and not Stable, This is the best tuner .i compare it with guitar tuner! with my friend:
First it is much faster than guitar tuner! and it can shaw the 0.1cent changge . if i use bluetooth. It is much better than guitar tuner!.

If you want it work better ,pls buy a bluetooth headset. it will give you so many Surprise.

poinzw about Guitar Tuner*