I remembered when my kids were having their music lessons, I used to have the piano tuned. Kids will learn to identify the key tone at early age and if the piano is not tuned properly, they will learn to identify the wrong tone the untuned piano keys give out. Same for electric guitar ...Josh wanted one for his electric guitar and I think it is a wise decision to get a guitar tuna .
It has built-in piezo transducer picks up instrument's vibration rather than sound.
Has improved software for faster response and improved accuracy.
Has a tri-color reversible backlit LCD screen makes it easy to tune in dark environments while allowing mounting in front or behind headstock.
Has a wide calibration range (410Hz to 480Hz) and visual metronome.
Its compact design blends into the aesthetics of instrument while adding considerably less weight than other headstock tuners.
Has tunes acoustic and electric guitars, basses, mandolins, banjos and other stringed instruments.
He picked this tuner for the great features and I agree the features are good and at such affordable price too.