Features:
Small and exquisite appearance, convenient to carry.
360 degree rotatable design to match your need better.
Indicates tuning status by showing 3 sorts of color(green, red and orange).
With a clip, it is easy to fix on the instrument.
Auto power off function, the device will turn off automatically if there is no signal present or operation in 3mins.
It can be used for the tuning of guitar, chromatic, bass and ukulele.