Overview:

A4 value button (only available in G/B mode)
In guitar and bass tuning mode, press the b key
Adjust the lower semitone: b, bb (G/B mode only
Can use)
Move with the face of the clip
Very humane

Specifications:

Material: ABS
Packing boxes
Color: black, white, light blue, pink

Package Content:

1*Acoustic Guitar Tuner