SmartSense Motion Sensor Trigger things like lights to automatically turn on when motion starts, and then turn off after it stops Secure your home by setting alarms or lights to turn on if unexpected motion is detected Powered by either two AA batteries (included) or micro-USB This ZigBee-powered device has a range of 50 to 150 feet (depending on your home's construction) Powered by either two AA batteries (included) or micro-USB