This New style mug has a LED Intelligent Temperature Display on the top of the thermos which will last up to 50,000 touches without a battery change. That's 2+ years of usage! The warmth of every moment you can see just by gently touching the top of the thermos cover. Press the top of the thermos softly,Sensitive capacity touch-cover can show the temperature of water inside the thermos immediately that can avoid burning your mouth.