Notes: 1. The adapter, charging plug and power bank are not included. 2. The cups are not included. 3-level adjustable heating coaster, which is easy to operate and can be used to heat milk, coffee, water, etc, suitable for daily use. Features: Heating, constant temperature and heat preservation, according to your needs, to provide you with the right temperature. With LCD screen displays, let you know the current gear. Simple operation, one-button control. 8 hours of automatic power-off function, prevent safety issues. Powered by USB, connect to power bank with the USB charging cable for use ( Power bank not included). Can be used to heat tea, milk, water, beverages, coffee, and more. Suitable for most flat-bottomed cups with a bottom diameter less than 76mm, such as ceramic cups, glass cups and stainless steel cups, etc. Perfect for office, homes, kitchens, dorms, and more. A nice present for birthdays, graduations, anniversaries, dating, retirement, Thanksgiving Day, Valentines Day, Mothers Day, Christmas, New Year, etc. Specifications: Material: ABS Size(Dia.xH): 11.7 x 2.3cm, suitable for cup bottom diameter: less than 7.6cm Input voltage: 5V Input current: 2A Rated power: 10W 3-gear temperature: 55 degrees Celsius, 65 degrees Celsius, and 75 degrees Celsius Package Contents: 1 x Heating Coaster Pad 1 x User Manual Please Notes: 1. Due to the lighting effects and shooting angles, the color of the item and that shown in the picture might have a nuance. 2. Due to manual measurement, there might be a tolerance in the product size.