Adjustable Temperature: You can adjust the temperature of to 1- 3 gear according to your needs, so that the coffee warming speed and heat preservation effect is different, the third gear will more fast. use paired USB charger to maintain the best warm effect. Maintain Optimal Temperature: No matter the drink is super-hot or cold, smart mug warmer for office will keep the temperature of your drink about 131F/ 55C, it is the most appropriate temperature for people. 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 to warm. By removing the mug, tea cup warmer will shut off automatically. Besides, it with Drink water reminder. Small and Light: Simple and nifty cup warmer plate will make sipping your hot coffee a more enjoyable experience. It can use mug, glasses cup, plastic bottles, boxed drinks warm cocoa, coffee, milk , water, beverage, etc. Convenient for your life. Best Gift : Cup warmer for office will be a best gift to show your care for your families, lover or on 's day, Mother's Day, Father's Day, Thanksgiving, Christmas or other occasions. Parameters: Voltage: 5V = 2A Rated power: 10W Wire length: 1.2 m/ 47in Colour: white + black Material: ABS Size: 132x118x20mm Package Contents: 1 x Coffee Warmer Plate 1 x USB Power Cord 1 x Manual TIPS: Do not Press the warming surface when it working so as not to hurt. If the weight of the cup is too light, it may not trigger the sensing system. In this case, you need to manually press the power button. product cannot boil water, do not use it as a cooker. note we 't come with the coffee cup. The waves on the displaywill keep flashing, if there is nothing on warm plate when the power is turned on. Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.