WOOX Zigbee Gateway is required to use this product Voice control - works with Amazon Alexa (Echo and echo Dot) and Google Assistant for voice control (Alexa device and Google Home device sold separately) Works with all WOOX Home smart devices Remote access - control your smart sensor from anywhere with your tablet or smartphone using the free woox home app Alarm notification - WOOX Home app detects and sends warning when door/window sensor is opened or closed Automations - set automations with other WOOX Home devices to enable functions when sensor is opened or closed