*AUTO power on once clipped onto a headstock
*AUTO power off when removed from the headstock
*AUTO power off in 5 minutes
*While the tuner is clipped onto the headstock, it turns on automatically, and turns off automatically while it is removed away from the headstock.
*Built-in piezo sensor for better tuning.
*When it is in tune, the backlit turns GREEN. When it is sharp, the backlit turns RED. When it is flat, the backlit turns ORANGE.
*Tuning result: Chromatic: C C# D Eb E F F# G G# A Bb B
*Tuning range:A0(27.5Hz)~C8(4186Hz)
*Tuning mode:Chromatic
*Tuning precision:±1cent
*A4 range:440Hz
*Detection method:Clip
*Tuning mode:Auto
*Power supply: 3V(CR2032)Lithium battery
*Dimensions:48(W)x44(D)x27(H)mm
*Weight:21g