EFEMIR Smart Thermos Cup for Tesla Model 3 Model X Model Y Model S, Car Thermos Bottle LED Digital Temperature Gauge Stainless Steel Thermos,A

【Waterproof LED Display】: (without other filters). Waterproof LED display that can be fully submerged in water. Just touch the LED screen and the temperature of the liquid will be displayed on the LED screen. No need to test the temperature with your mouth or risk scalding yourself. 【Keep Warm and Cold】: The vacuum of cups and mugs impedes heat transfer. Our products keep liquids heated above 42°C for up to 6 hours and chilled below 10°C for up to 5 hours. This is longer than other vacuum bottles. (After 24 hours in 100°C warm water, the temperature adjusts to approx. 40°C) 【Safe and Healthy Material】: The inner wall is made of food grade 304 stainless steel and the outer shell is made of high quality 201 stainless steel. 【Super-Capacity Battery】: Large-capacity lithium battery, the screen will turn off automatically when not in use, and the battery life can be up to 2 years. You don't have to worry about changing the battery every day. 【Wide Application】: With the most advanced double-walled vacuum technology, this mug is stylish and durable. Whether traveling, at home, in the office or outdoors - the ideal companion.