This Qwik Tune Guitar Professor GP-1 multi-functional guitar tuner can be used with the built in microphone for acoustic guitars or via the jack inout for an electric guitar.
The LED meter display shows clearly if the string is flat, sharp or in tune.
If very out of tune, it also includes a pitch pipe which can play a reference note to help tune the guitar before switching to the digital meter to fine tune.
The Guitar Professor also has a built in chord finder which displays the tab chart for over 250 chords including Major, Minor, 7th & 9ths
The little slot on the back enables a penny to be used as a makeshift prop to support the guitar tuner in a more user friendly tilted position as shown in the first picture.
This has only been used a couple of times so is in mint condition. My daughter preferred to use her keyboard to play the notes & soon lost interest in playing! or learning any new chords!
You will need 2 x AAA batteries.