The 10 Oz Black Self-Heating Heated Mug Has A Temperature Control That, Stirs. Always Perfect Temperature: Keep your coffee, tea, or other beverages at the perfect temperature with 3 adjustable settings: 100?-131?-149?. Say goodbye to lukewarm drinks! Fast and Safe: Heat your coffee to 131? in approximately 10 minutes. Battery-free design with a non-heating base and auto shut-off feature after 8 hours for added safety. Simple to Use: Easily adjust temperature/stirring with the push of a button on the coaster. No app, no password, no safety concerns. It's that easy! Automatic Stirring: Equipped with an automatic stirring function (60s) with the option to manually turn it off. Perfect Gift: Give the gift of warmth! Everyone on your list will appreciate their hot coffee or tea at the perfect temperature, whether they're at home, the office, or working remotely.