A vibrator can be used for external and/or internal stimulation.

A vibrator is an electric sex toy that vibrates, and can be used for external and/or internal stimulation. Waterproof vibrators are perfect for use in the bath or shower. They come in a variety of shapes and sizes, from small bullet vibes to full-size dildos with rotating beads inside them (vibrating dildos). Vibrators may have just one speed; some have several different speeds so you can find the one that's right for you—and then switch it up if desired!Some vibrators are waterproof and others aren't; when shopping for one, make sure it has an on/off switch on the bottom so you don't accidentally turn it on while washing it by hand. Also pay attention to whether or not a particular type of waterproof seal can withstand being submerged under water—otherwise your investment could go down the drain!