My racket zapper just stopped charging and I was annoyed because we had like a dozen house flies in the kitchen and they were driving me nuts. I immediately ordered this as it has good reviews and it is plug-in vs. A charge one. It’s ready to go right out of the box. Just plug in and it zapped like 7 the first night. I’ve tossed probably 2 dozen bugs or so just in the past few days since I got this. It’s super easy to get bugs out, too. Just unscrew the bottom and dump out. Couldn’t be easier. Doesn’t make any noise that I have noticed besides the tiny *zap!* from each bug.