The riddex pulse is pure dee crap it dose dose not work at al li had roaches from a new tenant that had moved to the downstairs apartment and one day i saw the commercial and decided to call because it sounded so convincing i just knew that would be money well spent however the roaches would be drawn to it like a hang out spot the roaches would be all on it and behind it absolutely every where.its like all the roaches came to hang out on that thing dont waste ur money.i promise you will be completely unsatisfied. read full review »