DONNER Smart Headless Silent Guitar Travel Portable Detachable Acoustic Guitar 1. Body: mahoganymaple 2. Body support: sandblasted zinc alloy 3. Fingerboard: HPL technology fretboard fingers 4. Plate dots: white shell 5. Fret wire: rounded white brass fret wire 6. Battery: GP 9V 7. Size: about 39 inch 8. Weight: about 1500g Features: 1. Resonance-free chamber design, quiet and low noise 2. Detachable stand with storage bag, convenient to carry 3. Move the headstock function to the bottom of the body to avoid damage and save space 4. Industrial design acoustic change, out of the traditional guitar limitations, simple lines outline 5. Headphone output + MP3 input + 6.35 port output, simple and clear functions 6. Dynamic and frequency response, closer to the real acoustic guitar tone, with sensitive 2-band EQ + VOLUME adjustment knob, at any time to fine-tune your favorite tone 7. Inverted phase button will be the output signal 180 degrees inverted to eliminate FEEDBACK in one step, so that your piano sound more pure 8. Low center of gravity position, suitable for playing difficult chords such as C, F, etc. High center of gravity position, convenient for novices to do climbing exercises, to help reduce the pressure on the wrist area 9. Hand-rounded and chamfered pins are used to minimize the stagnation of the position change. 10. Hidden neck and fret adjustment key, ready to use, adjust the status at any time