My violin teacher recommended me this tuner. He has his for many years. It did not take long for me too, to me, this little device has convinced. It serves its purpose to the full extent and is more than easy to use. Rear, a small wedge be folded so that the device can be installed, for example. On a table. I would like to mention that the entire handling of the device with one hand is absolutely no problem. That is, in one hand, I can hold my violin and the bow, while I get the tuner with the other hand out of the closet, anschalte and place it on the music stand, or the wedge ausklappe and place it on the table. The processing makes an absolutely solid impression. The battery I had not change after one year. Otherwise, I believe that this device will keep forever.