InGenious USB Cup Warmer Mug Weight Activated Ceramic Hot Plate

Amazon

USB Powered Cup and Mug Warmer Designed to Keep Your Drink at a Constant Warm Temperature Heats Drinks up to 53°C and Keep Drinks at 53°C When Cooling Through Ceramic Hot Plate Technology Automatically Starts when Cup or Mug is Placed on the Warmer Thanks to Gravity Based Switch Switch Turns Unit Off When Not Loaded Meaning You Won't Waste Energy When Its Not in Use! Measures around 16.5 cm x 13.5 cm x 2.5 cm and Powered via In-Built USB Cable (Adaptor Required), Weight: 0.30423792156 pounds, Manufacturer: The Source Wholesale

Currys

- Keep your tea or coffee nice and warm during cold months with this cup warmer - When you put your cup on the pad, it turns on automatically and starts heating - It's got a maximum temperature of 53° C - not too hot, not too cold