This is the perfect water bottle for hot or cold water. Fill the bottle with boiling water with boiling water for making hot drinks on the go. If you require a cooler drink, simply shake the bottle for 35–45 seconds, and the water temperature drops to a tepid 55 degrees. This smart bottle will also remind you to rehydrate. Colorful lights on the cover indicate water temperature to prevent scalding: a red light indicates temperatures above 60 degrees, a yellow light indicates that the water is 41–65 degrees,while a blue light shows it is suitable for drinking below 40 degrees. This device also supports wireless charging.