Iris button uses Internet connection to manage and monitor your smart devices through your iPhone or Androids phone. You can trigger any event or function by pressing a single button. It comes with a replaceable Lithium ion batteries. This gadget can also be used to report the current temperature wherever it is located which is handy in case of monitoring a room or location to be at certain temperature. The Iris app can be downloaded from the App store and then it can be connected with Iris smart hub. The support is also easily available at Iris official website. The button is available at a very reasonable price of $ 24.99.