Easy to use. Only needs 2 AA batteries. Elegant and a good way to stimulate facial muscles and apply moisturizer.This is so relaxing and amazing. Your face should be moist otherwise it may burn as the friction hurts. I don’t use it every night anymore but I did for a month. It does relax your face. I don’t think it helps with anything else though lol. But I don’t have much puffiness or anything. As stated you need to provide the battery yourself but who cares it’s worth it!It’s really soothing on the skin perfect for an at home facial! It works great and it’s super calming I really love it definitely worth buying!! It does need batteries thoTime will tell if it helpsWaste of moneyGreat skin care productMuy bueno si vibra bastanteDied in 2 months. Don’t waste your money.