Cup Warmer Coffee Warmer Mug Warmer Insulated Coaster Drink Warmer 4-Level Temperature Adjustment Timer Mug Coffee/Tea/Water/Milk Drinks Insulation Heating Coaster (White) 【Effective and Rapid Heating】This heated coaster, using advanced PTC heating technology, allows heat to penetrate quickly, eliminating localized overheating and providing balanced and efficient warmth. It is more energy-efficient and environmentally friendly than conventional heating modes. Compact size: 13.5 x 13 x 2.3cm, with a 10 x 11cm heating zone, suitable for various cup sizes. Built-in intelligent NTC temperature controller ensures precise control and prevents overheating, ensuring your drinks are at their optimal temperature. 【Customizable Temperature/Timer Settings】Easily select your ideal temperature with 4-level temperature control (45℃, 55℃, 65℃, 80℃) to suit your needs. Simultaneously, it offers four timer stop options (0H-2H-4H-6H-8H). It focuses on constant temperature and heat retention, enhancing the flavor of your water. 【Reliable Quality & Long-lasting Durability】Passed rigorous PSE safety certification and 10,000 safety tests, ensuring safe use. High-quality heat-resistant materials wrap the bottom and sides, effectively blocking high temperatures and protecting your desktop and hands. Features basic waterproof performance and a waterproof silicone ring inside, so if you accidentally splash water, simply turn off the power and wait, or wipe it with a dry cloth. 【Wide Range of Cup Compatibility】Perfectly compatible with stainless steel, ceramic, heat-resistant glass, PPSU baby bottles, drink cartons, open-top beverage cans, and even snacks like bread. The innovative square design widens the heating contact surface, especially suitable for square containers, and there is no limit to the weight of the cup, but the heating efficiency is better with cups that have a flat bottom. Please note that the heating effect may be affected by the unevenness of the cup's bottom. Insulation Heating Pad * 1 1.5-meter long power cord Japanese manual Protective bag Pearl cotton bag (Note: With overheating protection mechanism. If an abnormal temperature rise is detected, the heating element will immediately stop operating to protect the user's safety.)