As some may remember I bought a guitar

electric with an amp and it's currently pissing my parents off when I get in from work and fancy practising. I need some headphones.
They've got, I think it's called a 3mm socket for headphones, but I know you can get a converter...I just want some decent headphones with (either wireless or longish cable) for not that much money please

any recommends, looking in electrical stores hasn't been much help *sigh*