Speed: 1. Adjust water pressure by pressing and holding the ON/OFF button until the desired strength is reached. 2. Switch between 4 pressure modes (Strong, Normal, Soft, DIY) to suit your needs. 3. Fill the extra-large 300ml tank with water, ensuring the nozzle is fully inserted for leak-free use. 4. For thorough cleaning, remove the tank and rinse it under running water after each use. 5. The IPX7 waterproof rating allows for easy shower cleaning. 6. The 1500mAh battery lasts up to 45 days on a single charge, and the USB-C cable (included) enables fast charging.