[Keep Constant Temperature]: This smart heating coaster is thermostatically heated: 131℉/55℃. Keep your coffee at a comfortable temperature in the office or at home and avoid your drink cooling quickly in the cold winter, so you can enjoy a constant temperature drink all year round.

[Portable]: Coffee cup heater with a compact size of 132x118x20mm is easy to carry, perfect for putting in your bag, or backpack without taking much space.

[Applicable Cups]: The cup warmer is suitable for most cups of different materials: ceramic cups, glass cups, metal cups, stainless steel cups, milk cartons and high temperature resistant plastic cups. Thin and flat frosted cup bottom will have a better cup warming effect.
[Pressure Switch]: The coaster will automatically power off after the cup is taken away. Don't worry if you accidentally forget to turn it off. The bottom of the heater always stays below 55 degrees Celsius, no need to worry about overheating to damage the table. Please do not touch the heating surface after opening or closing it for a period of time.
[Great Gift Choice]: The thermostatic coaster lets you enjoy a warm cup of coffee, tea, milk or other drinks anytime. It will be a great gift choice for your friends, family or lover on Thanksgiving, Christmas, New Year, Valentine's Day or other special occasions.

Features:

Lightweight and Portable
The heating is lightweight and of a compact size space saving for desk. Easy to carry, suitable for family and office use.
Coffee Mug Warmer Auto On/Off
Coffee cup warmer for desk has the gravity-induction, so after turn it on, put your mug on the surface of the cup warmer will start to heat. By removing the mug, tea cup warmer will shut off automatically. Besides, it also has the function of drinking water reminder.
Suitable for Most Mugs
The electric cup warmer is suitable for most cups that can be heated, such as ceramic mug, glass cup, stainless steel cups, etc. To obtain better results, we recommend using flat-bottomed glass cups or stainless steel cups. Putting a lid on the cup will also help retain heat. (Note: The Cup is not included.)

Specifications:
Colour: Black+White
Product Name: Coffee Mug Warmer
Material: ABS + Glass
Rated power: 10W
Size: 132x118x20mm
Net weight: 140g
Voltage: 5V -2A
Power supply method: USB

Package included:
1 x Coffee Warmer Coaster
1 x USB Cable
1 x User Manual