Keep 131℉/55℃ optimal temperature The USB coffee cup warmer designed to keep your beverage at a constant temperature (131℉/55℃) and keep this temperature the whole day， you can drink your delicious coffee at any time(Please be careful not to treat it as a heating stove). If you have a hot cup of coffee you don't want to go cold， a Coffee cup warmer is the best choice.

• Gravity sensing auto on & off - The coffee cup warmer for desk built-in gravity induction button， No need to turn it on/off manually， Put the mug on heat zone， the coffee cup warmer plate will work， remove the coffee mug warmer plate will auto turn off.
• Use a suitable mug - The coffee cup warmer is made of waterproof tempered glass， and the warmer area is 3.5" in diameter. use a thin-walled， flat， or flat-bottom mug for the best results. The coffee cup warmer is suitable for tableware， stainless steel cup， mug， milk box， glass cups and etc.
• Waterproof design - Unlike another coffee cup warmer， our mug warmer， uses high-quality safety explosion-proof and waterproof glass， and it is easy to clean.
• Best gift choice - This coffee cup warmer is a great choice for keeping your body warm all day， a great helper to create a better life. it will be your best gift choice on Christmas and Valentine's Day， Mother's/Father's Day， Thanksgiving or other special occasions.
• Power: 16 W
• Material: Tempered glass
• Control method: Touch
• Heating temperature: 55
• Coaster size: 160 x 120 x 20 mm
• Package Included: 1x Thermostatic Cup Coaster