1. 900mAh battery, two months long standby time. 2. The lid is sealed and waterproof, hygienic and clean. 3. 3 levels of breathing light prompts water temperature 4. Heat preservation time: 15 hours 5. Input: 5V 0.8A 6. Battery capacity: 900mAh 7. Capacity: 360ML 8. Material: 304 stainless steel