Korg AW2U Ukulele clip-on tuner
[aw2u]

Clip-on ukulele tuner that attaches directly to a wind instrument or string instrument providing for cable-free tuning.
Four tuning modes support every type of ukulele
String name and note name are automatically detected and clearly displayed
Clip size and shape is ideally suited for mounting on the ukulele's headstock.
Double ball joint mount allows the display to be positioned for optimal viewing.
Built-in backlight ensures excellent visibility even at night or in dim conditions.
Two backlight modes: Soft mode for low-illumination; Auto mode for high brightness.
Automatically switches to Soft mode to conserve batteries, when no sound is present
Select the internal mic, or a piezo sensor that detects the vibrations of the instrument
Auto Power Off prevents the battery from running down when the power is left on
Memory Backup function.