They are the battery operated self contained units that go on the end of any telescopic poles. They operate just like your home vacuume cleaner in that there is a bag inside that catches debris inside the mesh bag. I have read a lot of mixed review, and do not know what to think...if anyone here uses them please let me know if they are worth the money?
I was looking at a Blaster Max or Catfish Max or something like that. Anyone got any ideas?