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In our daily life, especially in cold weather, there are many times that require heat insulation, such as milk, coffee. With our USB insulation rubber coaster on hand, no more worrying about your drinks getting cold.

Made from eco-friendly soft PVC rubber material and powered by the USB cable, no batteries required which is easy to connect with the computer, tablet, laptops, travel chargers or other USB devices. The size of USB beverage warmer usually designed at 10cm wide 5mm thickness, which can easily fit into almost all backpacks and does not take up a lot of space. You can bring it anywhere you need it to be, so convenient! Whenever you want to keep your mug of tea, coffee, water, milk or other beverage warm, just plug this mug pad to any USB adapter and always enjoy a warm hot drink.

The USB coffee cup warmer coasters are not only ideal used in household, office, restaurant, bar and outdoor activities, but also a stylish and meaningful promotional giveaway. The PVC coaster can be heated to about 50 centigrade, the maximum temperature to 60 centigrade. Pay attention that the PVC USB coaster is not applicable to those recessed bottom cups, insulation cups and plastic cups.