Compression pedal?

[terb]

Compressor Pedals

I am thinking on buying the Keely Pro Compressor Pedal. Any comments or recommendations? Here is the link: https://www.sweetwater.com/store/detail/CompressorPro--keeley-compressor-pro-professional-studio-compressor-pedal

What exactly does a compressor do?

I know this might seem like a strange/silly question to most, but I am indeed unsure what exactly a compressor does! And by “does” I mean what it does to the tone, not so much the technology how it does what it does. I have little problem imagining what a distortion effect does, or even a chorus and a flanger, heck even a noise gate and a fuzz-wah… But, even though it is one of the most common effects, I am still a bit unsure what exactly a compressor does. So, what does it do to the tone and …