This vibrating butt plug from Doc Johnson's Erotems collection comes with a bullet vibe positioned just where you'd want it! You control the intensity with the multi-speed controller for totally controllable fun whenever you feel like getting off.
Available in Medium and Large.
Medium - 5.5" overall length, 1.75" thick.
Large - 5.5" long, 2.5" wide.
Uses 2 AA batteries