VANTAKOOL Coffee Mug Warmer with Automatic Shut Off to Keep Temperature Up to 131/55 Electric Beverage, MUG-98, BlackMUG-98 USE AT HOME OR IN THE OFFICE: The mug warmer is auto on & off, it can keep the morning coffee hot at your desk while work, or keep a cup of hot tea steamy while you relax on the couch. And the hot coffee plate is slim and lightweight for storage TEMPERATURE CONTROL SYSTEM: Our electric coffee warmer can slow down the cooling speed of hot beverage; Keep or warm up the coffee temperature to as high as 131/55.( 131/55 is best for drink ) WATERPROOF DESIGN: The Mug warmer for desk have waterproof panel is adopted without need for security concern, as you just need to dry it with a rag. Note: Do not pour water onto it. SAFE AND RELIABLE: Using High Tech Polyimide(pl) Film as mug warm heating surface, it keeps cup warmer heat-resistant and fire-resistant.This coffee heater with 16W low power can be used in different occasions(home,office) with different material cups(glass,stainless steel,enamel) for different beverage(tea,coffee,milk,cocoa). EASY TO USE: Coffee warmer through micro gravity induction switch to control temperature, NO NEED to shut off. Put mug on automatic heat zone, the cup warmer will work, remove mug the warmer plate will turn to stop heating.( MUG NOT INCLUDED)