This thing is JUNK! For one thing it's too flexible, the vibrator is weak and only works on the high setting but fades in and out, its also set too low, it should be closer to the head. It's not wireless like the pic leads you to believe, there is a wire! The suction cup is not very strong at all either, you can't stick it to a wall for doggy. Overall I'd say, "DO NOT BUY THIS" as I just learned, "You buy cheap, You get cheap!" Not sure yet, but this toy might find itself in the trash within the next couple of days! At least now no one else will make the same mistake I did!. Hope this review proves useful!