Acoustic Guitars (including classical guitars) use their larger-than-electric bodies to amplify sound naturally, which is why Electric Guitars and Acoustic Guitars are built differently. Acoustic Guitars feature 22 frets, while Classical Guitars with nylon strings have 21 frets. Acoustic Guitars use steel wound strings and tend to have a slimmer neck which is easy to play. They come in many sizes, from the small parlour and folk sized guitars, through to auditorium sized, and the crazier, dreadnought-sized guitars. They are louder than classical and electric guitars and are built for maximum resonance and projection. Acoustic Guitars are the most preferred beginner guitar and are available in various price ranges and colours. They also have multiple string options – 6 string acoustic guitar, 12 string acoustic guitar, and 4 string acoustic bass guitar.