USB Beverage Warmer and Cooler Coasters

This product is a dual-purpose beverage coaster that can both warm and cool drinks. It features a USB-powered design, allowing you to heat or chill your beverages within a temperature range of -3°C to 65°C. The coaster is suitable for coffee, tea, cans, and other drinks, helping to maintain your preferred temperature. Its compact black design makes it easy to use and convenient for everyday use at home or in the office.