1~5PCS Easy App Control Motion Sensor Sleek Design Infrared Smart Home Infrared Alarm Anti-theft Alarm Anti-theft Protection Description: 1.Smart Home Automation:A really good assistant for your smart house,no more worry about the invasion by external objects or strangers,protecting your home and valuables from unnecessary danger.It detects the movement of people and animals that around the sensor, providing timely notifications when you are not at home,even you are on holidays.(Note: Choose settings tap on top right corner on the Smart Life App and turn on the push notification.) 2.Real-time remote monitoring:Whenever and wherever you are, Once PIR detect people or animals are moving, and you will receive a notification by smartphone. Keep your house safe all the time. 3.Linkage device: Connect smart motion sensor with smart switch. When you get up at night, and PIR detect people movement, then the bedroom lights.(Note:Acheive the linkage function, you need to have other smart device except this smart motion sensor) 4.Easy to operate:No hub required,and simple download the "Smartlife"/tuya app on iOS and Android. 5.It can be powered by USB power supply or 2*AAA batteries. The product does not contain USB cables and plugs, and does not contain batteries. Package Included: 1*WiFi PIR Motion Sensor 1*Instruction Notes: It can be powered by USB power supply or 2*AAA batteries. The product does not contain USB cables and plugs, and does not contain batteries.