Using the Nu Sensuelle Aluminium Rumba Bullet is a breeze. First, make sure it's fully charged. You can then turn it on and start exploring the 7 vibration intensities and 5 patterns using the control buttons. If you want to try the warming feature, just press the dedicated button. You can use it on its own or with a partner. When using it, always make sure the area is clean and dry. After use, turn it off and wash it gently with mild soap and water since it's water - submersible. Avoid using harsh chemicals. Store it in a cool, dry place away from direct sunlight. If you're not going to use it for a long time, keep it with a partial charge to maintain the battery life.