【Immersion Heater for Boiling Water】The dual voltage system immersion water heater can be powered by 110-120V and 220-240V; when powered by 110-120V with 330W, it can boil water in a few minutes, and when powered by 220-240V, it can heat more cold water at a time 【Immersible Water Heater Portable】Wide application: The immersion water heater electric can be used to heat water, hot chocolate, coffee, tea, cook noodles, etc.; It is also suitable for office, camping, travel, home, hiking and other occasions 【Easy To Use】Just fill your container with water, then simply clip it onto your mug to submerge and plug it in. Once water is hot enough, boiling or has reached your desired temperature, unplug the heater and wait for 15 seconds before removing it 【Compact And Portable】The coffee heater is so small and portable that you can put it in your pocket. It is perfect for maximizing space in small areas and is ideal for people who travel and camp 【Caution】Keep hands away. Do not put hands in liquid while the element is plugged into a wall outlet Electric Immersion Water Heater, 300W Portable Water Heater electric Travel or Camping Accessories, 120/240V Dual Voltage Immersion Heater for Coffee & Tea (White)