The Envy 3 is a USB rechargeable vibrator; meaning, you simply plug it into computer to charge. If that's not convenient for you, there are wall plugs available for charging USB devices -- though this vibrator does not come with a wall plug.
This toy is controlled by two buttons on the bottom. The buttons are fairly close together, so it can be easy to hit the wrong one until you get the hang of it. One of the buttons controls the strength of the vibrations, and the other controls the patterns/functions. The one that controls the patterns is marked with a slightly raised F, whereas the other button is not marked at all. The raised F does make it easier to tell which button is which while you're playing.
Both of the buttons will turn the toy on. The unmarked button will start you off with steady vibrations, whereas the F button will start you off with patterns. If you do press the unmarked button and then decide that you want to switch to patterns, that's fine, you can simply press the F button while the toy is already going, too.
The vibrations of the toy are rumbly and deep. At the lowest setting, they're a very deep, rumbly low 2 vrooms, whereas they're a high four vrooms on the highest setting. They're located primarily in the head of the toy, but they do travel well down the toys smooth body. To adjust the intensity of the vibrations, you hold down the unmarked button. A light will flash while you do this, and then it'll come to a steady glow when you reach the highest setting. All of the vibration settings are relatively quiet; I wouldn't use this in the same room as someone else, but I have used it with someone else in the next room. No one was able to detect that this was being used through my door.
As for the patterns, this toy has seven of them. I'm not a pattern girl, so I don't use the patterns very much, but it's cool that they're available to those that like them. The patterns you will find here are your standard patterns, really. There's escalating, pulsating, roller coaster, and combinations of escalating and pulsating.
When you're done playing, simply press the unmarked button one time, and the toy will shut off. When you go to play again, the toy will remember the pattern that you last left off at, but it will not remember the last intensity that you used.
As a frequent traveler, one of my favorite features of this toy is that it's able to be locked. To lock it, you simply press both buttons at the same time for a few seconds, until both lights go off. To unlock it, press both buttons until both buttons light up at the same time.
Finally, this toy is waterproof. I was slightly apprehensive about submerging it, since the charging port is open, but like my other Jopen vibrators, this one survived its trip into the bathtub with me.
Nice review! My ears perked up at the hearing of rumbley vibrations! I hope mine gets here soon!
@Woman China, the smell is like a very solvent like and I wonder if it's a glue they used in making this? I only smelled it when close up, but it is much better now that it aired out!