The Passion Double Play is a relatively inexpensive plastic toy that combines two types of vibrator into one good package. The smooth, silver plastic vibrating insertion dildo (which will get you around 6" inside) is a good piece of hardware and the tip is small enough for clitoral use by itself. A second, smaller, egg vibrator hangs off a coiled cord for alternative use. The box suggests any two of the following: clitoral, vaginal, anal as possible targets when self-pleasuring. From mine and my partner's experience, you should be careful when using it for anal insertion as the body of the insertion dildo is very smooth. Also, you should roll a condom over it to make it easier to clean and to avoid transporting bacteria from anus to vagina (something to remember when involving toys and anal play). External vibration could be used on the anus itself from the egg or shaft of the insertion vibrator.

Basically, use it like you would use an egg vibrator or a dildo vibrator. The best combination of use we have found has been for vaginal insertion and clitoral stimulation, as the cord has bit of tension that makes using it for any kind of anal stimulation mildly challenging. This is mostly because neither of us really use it for self-stimulation (I mostly use it on her during foreplay).

Two AA batteries power the combo vibrator, which felt like it gave plenty of power to both vibrators. The two also share a common speed control, which is located on the base of the main unit. If your hands are large enough (and most people's are), you should be able to use the controls with one hand. This is a good thing, as you probably will be using the other to hold the egg vibrator! The device is also marketed as waterproof, but my partner and I did not explicitly test this property. The design and construction, however, point towards being waterproof, with a rubber seal protecting the battery compartment from the outside environment.

The silver plastic is very easy to clean.

This toy has become our current "default" toy to use during intercourse. Something that works fairly well is using the egg as a clitoral vibrator while leaving the dildo on her stomach (your mileage may vary, of course), but I wouldn't recommend it over a proper vibrating cock ring.