LOSCATO Electric Mug Warmer for Office Home Desk Adjustable Temperature Tempered Glass Surface Coffee Beverage Warmer Plate(black) Design for those who need to warm his/her coffee or beverage or baby milk frequently, to save time reheated by microwave. Slow down the cooling speed of hot beverage. Updated product :Touch Switch Regulation-two modes & Auto-off, Longer cord length 59/150cmwith plug. Red indicator light indicateds high temperature file 55-60,Blue indicator light indicateds low temperature file 40-50 More effective Warming: better use flat-bottom mugs, put the cup on plate, Your cup will slowly warm from the bottom up. Suitable for tableware high temperature plastic, glassware, ceramic, iron, and steel mugs. SAFETY to use at home or office: coffee warmer for desk use 15W low safely power, slow down the cooling speed of your hot beverage. Compatible with 100V240V outlets. Note: The heating surface is made of glass. The surface heating plate is very hot, When the coffee warmer is working, be care avoid dropping water on the heating place. And clean by dry rag if the surface is hot.