This is a combination of WiFi + RF technology to develop on-site alarm, built-in 120 dB siren sound, the world's leading anti-theft intimidator; infrared sensor alarm, door and window opening alarm, the entire mobile APP remote control. Features: Wifi Smart Door Window Sensor: it is used to detect whether doors, windows, drawers, etc. have been illegally opened or moved, it will automatically alarm and notify you, easy control by APP/remote controller. APP Remote Control: add the device in APP to detect the status of your door/window, easy to control the smart sensor via APP(Smart Life). Push Alarm Notifications: it will push notification message to your smartphone when the door/ window opens or closes, so you can discover the danger in time. Multiple People Sharing: you are able to share the device with others, thus they can control the device as well. Easy Installation: to install the receiver, wall mounted with the 2 screws and anchors, or just place it on the table. Support 200 channel wireless learning accessories (such as RF door magnet, doorbell button, intrusion infrared, SOS distress button, wireless water range, etc.) Wide Application: protects your door or window and provides home security. Widely used in home, garage, apartment, dorm, shop, office and so on. Specifications: Material: ABS Operating Voltage: DC5V Static Current: 80mA Alarm Current: 300mA Alarm Volume: 90dB Wireless Frequency: 433.92MHz WiFi: IEEE 802.11 b/g/n 2.4G Working Temperature: -10~50 Number of Wireless Detectors: 200 Wireless Protocol: 1527 Wireless Reception Distance: 100 meters in the open Wireless Door Power Supply: 2 * 1.5V LR03 AAA battery (NOT included) Remote Control Power Supply: 1 * 3.0V 210mAh CR2032 button battery Item Size: 82 * 82 * 32mm / 3.23 * 3.23 * 1.26in Item Weight: 80g / 2.82oz Package Weight: 261g / 9.20oz Package Size: 11 * 11 * 8.5cm / 4.33 * 4.33 * 3.34in Package List: 1 * Burglar Alarm 3 * Pair of Wireless Door Detector 1 * Remote Control 1 * Type-C Cable 2 * Screw 2 * Anchor 1 * Eject Pin 1 * User Manual (English)