Read the product manual and safety instructions first
Wash your hands and clean the device before use
Charge it fully or insert fresh batteries if needed
Use a water-based lubricant if recommended by the manufacturer
Start on the lowest setting
Place it on the intended external area gently
Increase intensity slowly only if desired
Stop immediately if you feel pain, numbness, or irritation
Do not use on broken, irritated, or infected skin
Clean the device thoroughly after use
Store it in a dry, clean place
Keep it away from water unless it is waterproof
Do not share it without proper cleaning and protection
Follow age and health warnings on the packaging