1.WATERPROOF TEMPERED GLASS: The Self-Heating Coffee Mug with Lid is made of durable, waterproof tempered glass that is not only stylish but also easy to clean. This premium material ensures that the device stays in top condition even during daily use, making it a reliable and choice for any coffee lover or tea enthusiast. 2.SMART HEATED MUG KIT WITH WIRELESS CHARGER: Our cordless, rechargeable thermos keeps your beverage at an optimal temperature of approximately 131F (55C), ensuring that every sip is as warm as the first. Whether it's coffee, milk or ice cream, you can enjoy your favorite beverage at the ideal temperature for hours. 3.COMPACT AND LIGHTWEIGHT DESIGN: Whether you're at home, in the office or traveling, our heated coffee cup thermos is easy to carry. It's the perfect companion for keeping your drinks warm and charging your devices wherever you are. 4.WIRELESS CHARGING FUNCTION: Our innovative design is more than just an insulated mug, it has wireless charging capabilities. Charge your cell phone and other devices while enjoying your hot beverage, making it a convenient and efficient addition to your office or home devices. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 351 hours Hope you have a pleasant shopping experience!