- Long battery life: ZE1 uses a CR2032 lithium battery that has a lifespan of just over a year, and you'll automatically receive a reminder when the battery needs to be replaced. - High range: ZE1 has an impressive range of up to 200 meters, allowing you to place the device anywhere in your home. - Easy-to-use app: With the easy-to-use IMOU Smart mobile app, you can easily set up events that are triggered at the touch of a button, such as turning lights on/off, generating an alarm, or sending messages to your smartphone if you need help.