Using this Calexotics Rechargeable Travel Kit is easy. First, make sure it's fully charged via the USB port. You can choose any of the four interchangeable heads based on your preference. Just attach it to the massager and turn it on. You can select different settings according to your comfort level. When you're done using it, remember to turn it off. As it's waterproof, you can clean it under running water, but don't submerge it for too long. Store it in a cool and dry place. Don't expose it to direct sunlight or extreme temperatures. And be gentle when handling the attachments to avoid any damage.