Heh. Believe it or not, they’re small surveillance cameras from the nineties. They have infamously bad quality picture with all kinds of VHS-style artefacts and shaky picture. They’re hooked up to the small CRT-monitor which is hooked to one of my USB-ports.
Basically I have a two camera system that’s always ready to record my synth noodling and they shoot in instant-Jexus-quality without the need to do the effects afterwards in software. The Monitor is capable of supporting four similar cameras (Always looking for them in the fleamarkets.) and a friend of mine who’s handy in electronics promised me to build a device that puts the cameras in midi sync with my sequencer. That would be beautiful.