Using the Calexotics High - tech Optimum Power Elite Professional Male Masturbation Stroker is easy. First, make sure it's fully charged via USB. You can choose your preferred vibration mode from the 7 functions. The open - sleeve design allows you to adjust the grip according to your comfort. Use the 3 silicone support rings for extra stimulation. When you're done, turn it off. To clean it, simply wash it with mild soap and water because it's waterproof. After cleaning, dry it thoroughly. Store it in a cool, dry place. Remember, use the travel lock when traveling to avoid any unwanted activation. And don't forget, the smart memory chip will pick up from where you left off last time, so you can have a seamless experience.