Description: 【Durable Material】: This hot coaster is made of high quality materials. PTC heats up quickly. It can quickly heat milk cups to 70°C in 20 minutes. It is highly compatible and does not need to . 【Intelligent Timing】: Smart cup warmer,55 C intelligent constant temperature, two speed automatic shutdown/4h timing/12h timing design, you don’t have to worry about forgetting to turn it off. 【Portable】: Our smart coffee warmer is small in size and has a cup capacity of 300ml, making it easy to carry. 【Key Switch】: The drinks cup warmer features technology, an LED display and a waterproof panel. Just tap to turn on the cup heater. 【Application】: This USB cup warmer is suitable for all kinds of flat bottomed cups, such as ceramic cups, glass cups, metal cups, etc. Specification: Cup Capacity:300ml Size Chart: Warmer Coaster:11.5cmx15cmx2cm/4.53inchx5.91inchx0.79inch Package Includes: 1 Cup Warmer, 1 Cup, 1 Cable, 1 Cups Spoon, Note: Please allow slight dimension difference due to different manual measurement.