The vacuum thermos "Module X" not only keeps your drinks hot, but also shows how hot they are! The unique feature of the thermos is a touch temperature indicator located in the lid. To find out the temperature inside the thermos, simply touch the surface of the lid. The CR2032 battery can be replaced after its service life (1-2 years) - to do this, unscrew the top part of the lid counterclockwise and carefully replace the power source. The inner flask is made of high-quality SUS 316 stainless steel with the addition of molybdenum, making the thermos even more resistant to corrosion. The thermos is covered with a soft touch rubber coating on the outside, making it pleasant to hold in your hand. - "Food grade" durable SUS 316 stainless steel - Double walls with vacuum copper insulation - Touch temperature indicator - Removable filter - Soft-touch coating - Replaceable battery * compared to counterparts made of 304 steel.