Long-Lasting Battery It is packed with a long-life battery that will last over a year of normal use. When your battery starts to get low, your app will warn you with plenty of time to replace it. When you need to replace the battery, it can be easily done without the use of any tools. Strong And Water-Resistant While it is an incredibly attractive device, it is designed to be strong. Using hardened steel and boron, Noke will stand up to the toughest environments. It is even designed to work in places where it may get wet. With four silicone gaskets to keep the water out and no external buttons, make you can go anywhere you to go.