Rechargeable Intelligence Tuners

Features:
Easy for everyone to tunes the guitar and ukuleles, simple work for replacing strings.
Overtone and over current protected, no worries for breaking strings.
Save your time with 180rpm speed, powerful motor for all kinds heads machines.
Alternative guitar tunings function for various songs, low G tuning mode set for ukulele.
No confusion for winding and unwinding strings, tuning process and pitch distance display.
Confortable and tight grippable body, portable size and light weight.
Long lasting and rechargeable battery, convenient mini USB charging port.