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Features: * Easy to use: just plug in the USB power cable, touch the switch and put a cup on it (reminder: you can't put the conductor cup on it). Heating coolers can cool or heat your beverages. Easy to use. * Low Power Consumption: Low power consumption, fast cooling, no need to wait to drink water. * Compact Design: The heating and cooling coaster is made of 304 stainless steel, suitable for various occasions. This compact heating and cooling unit combines style and function with a beautiful and compact design to keep beverages warm all day. * Widely used: Whether traveling, working or outdoors, you can enjoy a cold drink in summer and warm up in winter. The quick-cooling cup is suitable for parties, offices, families, restaurants, bars, friends' houses, beaches, seaside, tourism and other places. It is also a great gift for lovers, fathers, mothers, wives, husbands and all lovers on special occasions like Valentine's Day, Thanksgiving, Christmas, etc. to show your concern. Specification: Name: Electric Refrigeration Heating Coaster Material: ABS + Semiconductor Rated power: 10W Rated power supply: 5V/2A Temperature range: 8-55° Function: cooling and warm Size: 15 * 3cm Color: Green, Pink Packing included: 1 * Electric Refrigeration Heating Coaster，1*cup