Specifications: 1. Real time monitoring of every opening and closing of doors and windows, immediate push of alarm information for abnormal changes, and remote real-time viewing of switch status through the APP;2. Wide Applications: Apply the smart door/window sensor to different scenes, your bedroom, garage, bathroom, garden and anywhere you like, keeping your from danger with a linkage of the smart door/window sensor, together with zigbee sensor with one zigbee hub required only. Easy to integrate into environments3. Battery powered, low power consumption, one year standby4. Home mode: Open the door and automatically turn on the light. At night, open the door and automatically turn on the light to welcome you, The product contains a 200mah rechargeable battery that supports USB power supply5. Easy installation with double-side tape, simply anywhere you like to protect your house security.Make intelligent linkage with other smart devices to achieve a comprehensive idea of intelligence.It can be flexibly installed in positions such as doors, windows, drawers, etc. ZigBee USB Door/Window SensorDetect the open/close status of doors and windows, and push notifications to mobile phonesPower supply: DC 5V1A (Type-C)Battery capacity: 200mAh rechargeable batteryCharging duration: 2 hoursWireless Technology: Zigbee3.0 IEEE 802.15.4Material: plasticcolour: whitePackage Contents: 1 x Sensor1 x Charging cableOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.