1, High quality: this USB electric drink heater is made of only the best material. This is an aluminium plate with a dark walnut decoration on the edges. This USB electric drink is kept warm and durable. 2, Portable: This USB beverage heater is approximately 4 inches wide and can be taken with you if you need it. 3. Durable: The USB electric drink heater is made of aluminium, which means it can be durable. It is also a waterproof surface, so you don't have to worry about splashes on your face. 4, The surface of the USB electric drink heater is very easy to clean. Simply wipe the surface with a damp cloth, which is good. 5, Practical: The portable USB electric drink heater is easy to use. All you have to do is plug it into a USB socket and everything will start to work. You can take it anywhere you need it. It's convenient