The small wireless button with a minimalist look can be installed anywhere and has many uses. It will serve as an SOS button to call for help in trouble or as a doorbell. With the wireless smart button, you can also easily control electrical appliances or lighting. Everything you need is easy to set up thanks to the free Mi Home application. The button is compatible with Android 4.4/iOS 9.0 or higher. The battery has a lifespan of 2 years. Quality design ensures high resistance to humidity and temperature.