This clip-type tuner is small in size and weight (only 22 grams) so you do not mind wearing it on the head of your instrument.
Precise and sensitive tuning, with large letters to make it easier to tune.
Being chromatic, you can tune any string instrument although it comes with several positions where it detects the note and the string to make it easier to tune. The instrument presets are: C (chromatic) / G (guitar) / B (bass) / V (violin) / U (ukulele). The tuning range goes from A0 (27.5Hz) to A6 (1760Hz).
It is powered by a 3V button battery (model CR2032) included in this article.