- WATERPROOF LED DISPLAY: Waterproof LED display which can be completely submerged in water. Just touch the LED display and the liquid temperature will be displayed on the LED display. You don’t have to test the temperature with your mouth or burn yourself
- DURABLE KEEP HEAT COLD: Vacuum from cups and mugs can block heat transfer.
- ULTRA CAPACITY BATTERY: Large capacity lithium battery, the screen will automatically turn off when not in use