Compact enough to fit in a thermos and lighter than a bottle of water, it's suitable for camping, hiking, and travel. With its newly upgraded carbon fiber heating element and innovative design, it only requires a power bank connection to provide warmth. Its unique rapid heating mode offers significantly faster heating than its predecessor. An integrated NTC chip enables precise temperature control, similar to an inverter air conditioner: it pauses to save energy when the desired temperature is reached, automatically resumes heating when the temperature drops, and provides continuous protection against overload and burns.