Hardwired for variable speed and maximum vibration! The X-Rated Jacks Hammer Vibrating Cock Pump with Cock Ring has a bonus cockring to keep your ramrod rock hard for deep penetration once the pumping is done. To use, just wrap the sleeve around the pump and insert the included bullet and wired remote into pockets. Adjust the vibration intensity with the slider on the battery pack. Vibrating Pump with Bullet uses 2 AA batteries (not included). Enjoy the ride!