Eno ET-33 Mini Auto Chromatic Acoustic Guitar Tuner Clip on for Guitar Bass Violin Ukulele, 360 Degree Rotate, Chromatic Tuner Easy to use clip on tuner for ukulele, guitar, bass, violin, Chromatic. Suitable for adults and children Clip onto head stock play a string and the tuner displays the note played Tuning Range: A027.5Hz)-C8(4186Hz);the tuner can turn 360 degrees Tune up or down to get the needle straight on the note for perfect tuning every time Battery: CR2032(included) Tuning for: Chromatic, Guitar, Bass, Violin, Ukulele,ect; Easy to read: Blue and white LCD display with green backlight; A4 Frequency: 440 Hz Tuning range: A0(27.5Hz)~C8(4186Hz) Mini size clip on vibration sensor tuner Precision: 1Cent Power By: 3V CR2032 Coin battery Press about 3 Seconds to Power ON/ OFF Slightly type the button to choose the tunning mode C/G/B/V/U     (C-Chromatic, G-Guitar, B-Bass, V-Violin, U-Ukulele) Rotate 360, eaasy to read from any angle Available color: Black(ASIN:B01A55NTKC), Blue(ASIN:B01A55HTH6), White(ASIN:B01A555E0A), please choose the right color you prefer 1 x ET-33 Tuner 1 x user manual Weight: 3.5G Demension: 35*48*54MM