feature: 1. Made of high-quality plastic materials, safe, non-, odorless and healthy. 2. Can be used to heat milk, tea, coffee, etc. 3. and portable, easy to carry and does not take up too much space.Can be used repeatedly and durable. 4. An easy-to-use coaster suitable for schools, dormitories, and offices. 5. 3-level temperature adjustment. Specification: Power: 10W Voltage: DC5V/2A Heating temperature: 55, 65, 75 Tip: 1. The product only includes heated coasters and does not include other accessories demonstrated in the pictures. 2. It can only keep heat, not boil water. 3. This product is only equipped with a USB cable and does not include a plug. Material: plastic colour: B-Green Package Contents: 1 x Heated coaster Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.