"Right"! 3

The tuner arrived today and I immediately put it on bass and guitar, and both worked perfectly.
Packets is also a battery attached (CR 2032, lithium button battery), this unfortunately I have discovered a little later ... However, I can now report that a CR2025 button battery also fits into the tray and the tuner, also with false battery, properly running.

The design is very simple, but which ensures a quick and easy operation. At the bottom there is a button, keeping it pressed, the device switches on / off when the button shortly pressed during operation can be between the various instruments Select (this will then be marked on the bottom of the screen with the first letter) ,
The vocal range is displayed on the large screen and at the top you can see the difference to the clear tone. If you did everything right, the display will light solid green and the next string can be tuned.

The tuner works with a small instrument inside which absorbs the vibrations of the strings. A correct votes is possible even in louder environments.

In addition, the display can be fully rotate and tilt up / down, so you can tune itself from the most unlikely positions, and thanks to the backlit display, even at night and from a distance (you never know ...). ;)

However, you can hear, at least in the bass, the instrument whirring softly. The one hears only from a short distance but playing I'll take it from reason.