"Description:Temperature Setting: The temperature of the panel is adjustable, it can be set to 70/90/110 respectively. (The temperature refers to the highest temperature in the center of the panel, and does not represent the temperature of the heated beverage. The temperature varies according to the environment and the object.) Easy to Use: After putting your mug on the surface of the cup warmer plate, just turn on the switch button and your drink will start to warm. By removing the mug, cup coaster warmer will shut off automatically. Reminder Function: If you offten forget to drink water, this constant temperature coaster will help you to slove this problem. It can remind you to drink water in time and keep healthy. Perfect Size: With the small size, this heated coasters for drinks will not occupy a big area on the desk. And it is easy to carry the temperature controlled mug anywhere you like. Specifications: Colour: white + black Size: about 13.2*11.6*2cm Rated power: 10W Rated frequency: 10Hz Rated input: 5V / 2A Model: Coaster Material: Glass Type: Coaster Occasion:All Occasions Shape:Square Features:Lightweight Package Include: 1xCoaster 1xusb line 1x English manual ""all Products From Us Have Undergone Strict Quality Checks. if There Is Any Quality Problem Or You Are Not Satisfied With The Product contact Us. we Will Give You The Best Solution."""