2 In 1 Electric Fast Cooling Cup Portable Smart USB Cooling Heating Coaster Coffee Milk Warmer Cooler Beverage Tea Cup Mug Mat Description: Product name: Intelligent Heating and Cooling coasters Material: ABS + Environmental-friendly Aluminum Product size: as shown in the picture Power supply mode: USB Packing: box (size: 15.5X15.5X10.5cm) Cup weight: 80G Coaster weight: 235G Nominal voltage: 5V Rated power: 10W Rated current: 2A Operating tempreture: 8~55° Specifications: 【HEATING AND COOLING】：Keep your beverage cool or coffee hot. Touch screen control , red LED light for HOT mode , heats up to 55°, blue one for COLD mode , coolest at 8° 【APPLICATION】： The USB cable can also be connected to the power bank to supply power, and it is easy to carry when traveling outdoors.Enjoy your cold beverage in summer or hot coffee in winter, whether traveling, working or outdoors.Warm milk to your baby whenever and wherever 【The Best Gift Giving】：Beautiful and compact design. It is best gift for Valentine, Thanksgiving, Christmas and other special occasions for lovers, fathers, mothers, wives, husbands and all loved ones. Package Included: A set: 1X smart hot and cold coaster + 1X cup + 1X USB cable or B set: 1X smart hot and cold coaster + 1X USB cable