For the very low price these things are actually pretty decent, if you already have some chargeable batteries (might be able to use regular batteries as well, as they don't seem to drain much) They are also quiet enough to not be noticeable as long as there is some background noise
However, the vibes are not very powerful and only have two settings - on or off, so at most you will tease yourself into frustration, which can be a plus if that's what you are looking for
