This crafty little device is meant to enhance oral with your partner. However, I find it to be a disappointing product. First, I'd like to say that a dinger is a great idea. It's a fun and exciting way to take things up a notch when giving or receiving oral. Second, I'd like to say that this dinger is, at best, frustrating. Don't bother with this little failure unless you're absolutely desperate to try it. The vibrator is good for stimulation, but it simply won't stay in place when you put it on your tongue. I thought maybe it was just me, but anyone who has tried it out is saying the same thing. This toy is great for people who don't read reviews, but that's why it's a good thing you're reading this review.

The casing on the dinger is made out of TPR Silicone, so it feels like a jelly toy. It's very sticky and picks up a lot of gunk and lint, which is not desirable for a toy that goes in the mouth. It has a slight rubbery smell. TPR is hypoallergenic, nontoxic, and phthalate free.
It has a knobby, bumpy texture on the outer side where you would be stimulating your partner, and low little bumps on the inner side that are supposedly there to help keep the dinger in place on your tongue. The ring, which goes around your tongue, has little ridges all the way around and two little balls at the bottom. Despite my best effort to work with these textures to help keep it on, they just don't help. The bullet on the inside is smooth plastic.

While it looks cool, and I'm sure it would feel good if it stayed on my tongue, the ring that goes around the tongue is way too stretchy. I'm not sure how to remedy this problem, but it just does not work. The switch is easy to turn on and off, but it is not so easy that you would accidentally bump it and switch it. The bumps on the exterior feel great, but they are kind of pointless when the toy can't be used for its original purpose. It is very small, but it's still really round and cumbersome inside my mouth. I think it would be easier to work with if it were flatter. Because it is so small, it is really easy to hide or carry with you.

Other than putting it on my tongue, this product is pretty easy to use. The switch is easily located and turned on and off. The vibrator itself seems to be pretty strong. When I put it on a flat surface, it dances around in a circle.
The vibrations can be felt throughout the dinger, and it can be stimulating for both the person giving and receiving attention. It's whisper quiet, so no worries about making too much noise (with the vibrator, that is). It's safe with liquids too, which is good since it's in your mouth!
It will drain batteries or overheat quickly, so you have to monitor how long you use it. It takes 3 watch batteries, but once this thing runs down, I won't even worry about replacing them. It isn't even worth the price of the batteries.

This little thing needs to be cleaned a lot because it picks up lint, hair, and other gunk you don't want in your mouth or on your junk. Simply rinse it off in warm water (I wouldn't submerge it. I know it can get wet, but I'm not sure how wet) and air dry it. You'll want to wash it off afterward too, since it's been both in your mouth and on someone else's body. It's TPR, so it's less porous than cyberskin but still more porous than regular silicone. You don't want to swap it with partners. I recommend using a dental dam or other barriers to keep it clean. You should only use water based lubes.

It comes in pretty cheap packaging: a piece of cardboard with clear plastic holding it down. You can tell that it's a cheap novelty toy that isn't really high performance.

Trying to use this toy with a partner was a complete disaster. We were both excited to try it, but when the time came to give it a whirl, it just kept falling off or getting twisted around my tongue. Both of us ended up putting more effort into making the dinger work than actually having fun, so we decided to give up on it and just enjoy ourselves. I've tried a few more times to readjust it or position it differently but to no avail.