Product Features: APP Remote ControlSimple download APP "Smart Life/Tuya Smart" in App Store or Google Play add the device to detect the human body movement. Home security in your hand all the time. Advanced Motion SensorPIR detects human body or animals that are moving, 120 detection angle, 6m detection distance, can achieve real-time monitoring day or night. Emergency Alert Push FunctionWhen there is movement detected, the alert notifications will be pushed to your phone, be aware of what's happening at home even when you're away. History Records TrackingYou can track the history of sensor activities. Strong Performance & Ultralong Standby TimeLong transmission distance, high sensitivity, and strong network signal. Ultra-long standby time. Powered by 2pcs DC3V LR03*2 batteries(not included), can last for 2-3 months. Specifications: Power Supply: DC3V LR03*2(not included) Standby Current: 75uA Standby Time: 2-3 months (trigger 15 times/day) App Push Notification Interval Time: 3-5 minutes Detection Angle: 120 Detection Distance: 6m Wireless Type: 2.4GHz Wi-Fi Protocol: IEEE 802.11 b/g/n Wi-Fi Connection Range: 45m APP: Smart Life/Tuya Smart Support: Alexa Mobile OS Required: Android 4.1/iOS 9.0 or later Material: Superior ABS Operating Temperature: -10~50 Operating Humidity: 95% Package Contents: 1 * PIR Motion Sensor (WiFi Version ) Note:USB Cannot be used with dry battery, only rechargeable battery