BodyWand Plug-In Massager
This full-sized massager is excellent to relax your body muscles, but can be used for other purposes, too. It's engineered for strong and continuous stimulation, and designed with subdued sound levels. The extreme power is controlled with a simple one-finger dial.
Personal Note: This is one of the most powerful wands I've tried. It feels like the vibrations somehow travel deeper into your muscles for a true massage experience. And because you plug it in, you never have to worry about running out of batteries.