Using the Nu Sensuelle Vivi is a breeze. First, make sure it's fully charged via the USB port. You can start by exploring the 4 speeds and 11 vibration modes to find the intensity that suits you best. For an extra treat, try the double - tapping feature with its 3 speeds and 4 patterns. You can use the vibration and double - tapping together or separately, depending on your preference. When using it on sensitive areas like the clitoris and G - spot, start on a lower setting and gradually increase. After use, wash it with mild soap and warm water since it's water - submersible. Keep it in the satin carrying pouch provided to protect it. Don't expose it to extreme temperatures or sharp objects. Enjoy your journey of self - discovery and sexual pleasure with the Nu Sensuelle Vivi.