It features specific modes for tuning a ukulele, guitar, bass and violin, although the 'chromatic mode' will enable you to tune almost any instrument.
The mode can be changed by pressing and releasing the power button (to the right of the screen).
The LCD screen is backlit, default color is orange, it will turn green when the correct pitch has been reached. The tuner is attached to a easy-to-squeeze padded clip that won't damage your instrument. The screen is rotatable by 360 degrees so that it can easily be viewed while playing, no matter where it is clipped on to your instrument.
The tuner is set to standard pitch (A4 = 440Hz) with a tolerance of approximately 1 cent. It is powered by a single CR2032 3v battery (included) and it will automatically switch to a 'power saving' mode when not in use. This normally takes effect after a couple of minutes.