Make hands-free video calls to the Alexa app or another Echo device with a screen. Instantly connect to other supported devices in your home, or make a voice announcement to every room with a supported Echo device. Alexa and Echo devices are built with multiple layers of privacy. For example, your voice is streamed to the cloud only after your device detects the wake word (“Alexa”). You can also turn the microphone and camera off with a press of a button. And the built-in shutter lets you easily cover the camera. Manage compatible smart home devices on the simple interactive display or use your voice. Control lights and switches. Set thermostats. View security cameras.