[Maintain the best taste] This coffee cup warmer is only 7 mm thick and has a heating plate, which can keep the cup and beverage at a temperature of 55C (131F). Keep your coffee, tea, milk or cocoa powder warm to maintain the best taste.[High quality and safety] High-quality aluminum alloy material and low power consumption can quickly heat up and maintain a highly stable working performance of the coffee heater-stable continuous heating, anti-overheating technology, waterproof panel design, no leakage.[Practical] It is used to heat various flat-bottomed cups (glass, stainless steel, enamel), the coffee cup heating plate of the desktop coffee warmer, and can be used to heat milk, coffee, tea or heat preservation in the home or office. try it [Ease of use] Just insert the computer, laptop or USB socket into the computer's cup, turn on the switch, and then put it on the cup. Get it done. Now, the electric mug will keep your drink warm until the last drop. The operation is simple and easy to use.[Best Gift Selection] is the best gift to bring warmth to relatives and friends, suitable for lovers, fathers, mothers and all relatives to express their love. The perfect gift for Thanksgiving, Christmas, birthday, Valentine's Day and other holidays.Name: Electric coasterPower mode: USB plug and play (with power cord)Voltage: 5VPower: 5-7WConstant temperature: 55Surface waterproof: YesIndicator light: YesColour: GoldMaterial: aluminum alloy + tempered glassSize: 82 x 82 x 7mmPackage Contents:1 x Coaster1 x English manualOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.