Specifications Product Name: Intelligent Door and Window Alarm Material: ABS Door Magnetic Size: 57*57*16mm/2.24*2.24*0.63 inch WIFI: 802.11b/g/n Magnetic stripe size: 57*15*16mm/2.24*0.59*0.63 inch Wi-Fi Type: 2.4GHz Sensing Range: 035mm Alarm sound: 80dB ( F-02A) Operating Voltage: 3V Standby current: ≤10uAh Standby time: about 1 year Description High-pitched Alarm Function - When an abnormal condition is detected, the device will immediately emit a loud alarm sound to notify the user to take action in time. Long Standby Time - Built-in high-capacity battery provides months of standby time, reducing the trouble of frequent charging. One-button monitoring and control - Users can check the status of doors and windows anytime and anywhere via smartphones and control them remotely for intelligent management. Remote Alarm Notification - Supports Wi-Fi connectivity, when an intrusion occurs, the system will automatically send an SMS or push message to the user's cell phone to ensure the first warning. Compatible with Smart Home Platform - Can be seamlessly connected with the ecosystem and linked with other smart devices to build a complete home security protection system. Package 1pcs Intelligent Door and Window Alarm