Hi,my dear angel, welcome to Jacenvly, our products are cheap and good quality, price is fair, you can't miss it. If this product is not your style, please click on our store, we have many kinds of products, there will be you like and suits you. If you have any questions about your purchase, please send us the first message, we offer world class customer service to make your purchase without your worries. Have a nice day. Plug In Electric Heating Cup Automatic Constant Temperature Warming Cup Pad Heating Water Cup Gift Box Dormitory Office Household Warming Milk Features: Your temperature allows me to you with 55 ° intelligent constant temperature/no cup type/16W low consumption design/dumping power outage Small and exquisite, occupying no space, like the size of a palm, with unrestricted use for external use Toughened glass panel is waterproof and , using sturdy tempered glass, durable and wear- Gravity induction dumping power outage, scratch and scald, increased base heat dissipation and ventilation Uniformly heated, fast flat bottom frosted cup bottom heating film increases contact area by 55 ° C, quickly and evenly converting electrical energy into thermal energy Product Description: Rated power 13W Including: Heating pad * 1 Features: Your temperature allows me to you with 55 ° intelligent constant temperature/no cup type/16W low consumption design/dumping power outage Small and exquisite, occupying no space, like the size of a palm, with unrestricted use for external use Toughened glass panel is waterproof and , using sturdy tempered glass, durable and wear- Gravity induction dumping power outage, scratch and scald, increased base heat dissipation and ventilation