This item does not include a warranty, instruction manual, or charging cable. I made an impulse purchase during the Qoo10 Mega Discount sale. I used it a few times, but it turned out to be completely unsuitable for me, as I just want to go to sleep right after my bath. To be honest, I'm not sure about the effects unless I use it continuously. Please check the functions on the web. There seems to be a dedicated app as well, so I hope you can search for it and make use of it. Since it's being sold by a careless person like me, I don't intend to sell it at an unreasonable price. Feel free to try it out if you'd like. Care: Penetration/Introduction, Lift-up Area: Face