Sound Hole

The Sound Hole of a guitar is typically found on an acoustic guitar and classical guitar. However, sound holes can be found on electrics. (Also known as Hollowbodies)

Sound holes are used to amplify the vibrations of the strings more efficiently. However, the sound hole is not the direct cause of the amplification, that is the body of the guitar. The sound hole simply emits the vibrations amplified in the guitar's hollow body.

Sound holes also do not need to be just circles, for they can come in many shapes, such as "F-holes" or "D-Holes". Electric guitar's are known for using the F-hole, such as a Fender thin line guitar.