Keep coffee tea and other hot beverage warm at 50 degrees or soIndividual port over current protectionErgonomic design and highly portable devicePlug and play installationPowered by USB portSmall light weight portable devicePower consumption、 can be used continuouslyKeep your cup of coffee、 tea or hot drinks warm as long as you wishOn / off switch selection with indicatorIdeal for use at home and office、 especially for cold winterNote:The demonstration coffee cup is not included.Specification:Type: Novelty、 Practical、 Fashion、 Leisure、 Eco-friendly Material:Electronic Components、 Stainless Steel、 ABS Occasion:Home、 Living Room、 Kitchen Room、 Bedroom、 Office、 SchoolPowered by:USB Cable Features:Cartoon、 USB Powered Warmer Cup Coaster、 Warm Various Beverage、 Eco-friendly、 Insulation Thermostat、 Durable and PracticalHow to use:Connected to the USB interface device Color: red、 green、 blueMaterial: Rubber Carbon FiberSize: 9.5 ～ 0.6cmWeight: 75 (g)Application: computer、 office、 homePackage contents:1 x Warm Cup Coaster1 x User Guide1 x USB Cable