Speed: 1. Remove the oral irrigator from its charging base. 2. Fill the water tank with lukewarm water. 3. Select the desired mode (Soft, Pulse, or Strong) using the mode button. 4. Place the tip in your mouth, pointing at a 90-degree angle towards the gum line. 5. Turn on the device using the power button. 6. Move the tip along the gum line, pausing briefly at each tooth. 7. After use, remove the tip and rinse it under clean water. 8. Store the tip in the built-in storage compartment. 9. Place the oral irrigator back on its charging base to recharge.