Tired of carrying your 4×12 cabinet and/or amp? No more lugging for you. The Pocket Amp from Palmer is a great solution to be a truly mobile guitarist. This little box has XLR and headphone outputs so you can do some practice on your own and hook yourself up to a PA system without having that awful sound when you connect directly.
You also have the option to plug in your MP3 player or other device via the Stereo AUX inputs. As for the sound the Pocket Amp lets you switch between clean, crunch and heavy amp simulation modes and mic/cabinet position simulations. All the basic drive, level, treble and bass knobs are there as well.
You can check out the Pocket Amp here.