Item Type: Pocket GuitarMaterial: ABS + MetalColour: BlackBattery Required for The Product: 1 x CR2032 3V 200mAh (Included) 1Better Practice: 6 fret appearance together with retractable design has represented a real guitar to better promote the practice. 2Easier Training: The display screen will show the chord and fingering, while the built in metronome supports beat customization. 3Practical Usage: The quiet playing suits for training chords and scales, improving finger speed, further enhancing skills, etc. 4Simple to Carry: Light weight and compact size add more convenience to the carrying, and the bag simplifies the storage as well. 5Great Materials: Combining high quality ABS and metal materials, not easy to malfunction, also very durable for long term use.