[WITH ROTATABLE SCREEN]Built-in rotatable screen, reserves the most commonly used chords, perfect tool for finger placement exercise,it helps guitar beginners/student develop their chord memories and develop a good habit of playing chords. [WITH METRONOME FUNCTIONS]With metronome functions, can learn the chords with yourself customized tempo.Equipped with real guitar piano strings that simulate the real scene when playing a guitar. With steel guitar strings, the tension of the strings can be adjusted, convenient to use.Steel strings are plated to prevent rust. [NO NOISE AND INTERFERENCE]No noise and interference, convenience and practicality,allowing you to immerse yourself in the space of your own, and enjoy your personal practice time! [POCKET SIZE GUITAR]Compact size, portable and lightweight, easy to carry and practice,could be put in pocket or bag, available for you to practice chords anywhere and anytime. [A HANDY TOOL FOR GUITAR LEARNERS]It's a quiet practice tool without guitar playing sound, so you can't tune or strum it like a real guitar.A handy tool for guitar learners who still want to practice during trips instead of bringing the huge guitar when you are travelling, you can carry this compact device to keep up your daily practice. Product Description