How's it going? I've never actually heard of the Micro Zapper, so I wouldn't know about it, but I can tell you that I really like my Zapperplans Zapper, because it is really small and portable. I usually just stick it in my shirt pocket while I'm zapping. :) Anyway, see if the Micro Zapper, has any features that you might want or not want. (what size, shape, switches, length of leads etc...) The Zapperplans Zapper is about 1 inch
long and an inch
and a half around, the leads are about 3 feet and it weighs under an ounce. It does not have an off and on switch, so you just disconect one of the battery prongs. As far as effectiveness in killing parasites, as far as I know they all work pretty much the same.