What are the different types of guitar capos and how do they affect the sound of the instrument?

There are mainly three types of guitar capos: spring-loaded, trigger-style, and screw-on. The type of capo used can affect the sound of the instrument by changing the pitch and tone of the strings when pressed down on the fretboard. Different capos may also apply varying amounts of pressure on the strings, which can impact the sustain and overall sound quality of the guitar.