What is an IR shell!!!!!!!!!!!!!!!!!!!!!!!

yep im a noob wat is everything please explain

IR Shell is a PSP Homebrew program that requires custom firmware to use.
It lets you listen to your music while you play games.
Put shortcut to your homebrew programs and emulators on your psp.
has a cool Universal Remote program you can use to control different devices.
Its just basically another XMB, but in a different format.
It is pretty cool, it has easy access to devhook and you can also go into USB Mode and you don't even have to keep your screen sitting there. You can be in USB Mode and off listening to music and going into different sections on your psp.
Theres more stuff, you will see all the different things if you get it.