Product Specifications: Material: food grade silicone, 304 stainless steel heating plate and lid Folding size: 149*139*50mm Folded size: 170*139*132mm Kettle mouth diameter: 85mm Power: 700 Watts Capacity: 555ML Voltage Range: 110-220V Boiling Time: 3 mins Package Includes: 1 * Foldable Travel Kettle 1 * Instruction Note: Please adjust the correct 110 or 220 voltage knob at the base of Kettle before using! 1.If the water need to be self heating, please keep knob on boiling, once temperature below 75 degree, water will be heated again. 2.If the water no longer need to be heated, please turn the knob to off and unplug power. 3.Pls understand that there may smell on the kettle since the material is silicone. However, please rest assured that this is food grade silicone and BPA free. It is safe for you to boil water. Please keep the lid open and put it on air vent, also you can boil the kettle with tea or lemon on first use to eliminate the abnormal smell. Fast Boil: 700 watts rated power enable water boiled in 3 mins, faster than any out-dated microwave or stovetop pot. Easy to Carry：Unfolded size: 170*139*132 MM, weigh in 1.95lbs, designed to be easily packed in your backpack or luggage. Great for trips, camp, travel ... One Button Design: Super easy to operate, just press the button, then water will be boiled in 3-5 minutes, Once the temperature below 75 degree, water will be self-heated. Detachable Power Cord and Handle: You can separate power cord and handle from kettle body for easier storage and water resistance. Dual Voltage and Heat Preservation Function: 110V/220V dual voltage optional, Take along for readily accessible hot water on any continent!