I really didn't have high hopes for this since it runs on AAA batteries. Well, I was wrong. Not only does it work great, it has different functions so you can really enjoy yourself with different patterns and speeds on the vibration end. It's small enough to slip in and forget about, yet powerful enough that when the remote is used, it makes you pay attention. Quiet and discreet, this could be used at home, or on the go if that's your thing. Stock up on the batteries, or better yet, get a couple of sets of rechargeables. Once you use this, you're going to wonder why you ever let yourself go a day without the big O.