1WiFi Connection: The sound and light alarm can be used separately without a gateway which is very convenient and quick and easy for you to use. 2Timely Alarm For Flooding Monitoring: When the flooding sensor is triggered, the acousto optic alarm will be linked to the alarm, and the mobile phone will receive the APP push notification, so that the abnormal situation can be understood at the first time. 3A Good Assistant For Home Security: When you leave home and turn on the defense mode, when someone enters your home from a door or window, the door and window sensors will be triggered, and the sound and light alarm will be linked to alarm, and the camera will start to record video and push it to the APP. 4Switched Ringtone And Memory Function: Built in 30 ringtones, the side of the sound and light alarm is equipped with a ringtone switching button, which can be switched at will according to your own preference, four level volume adjustment, strong shocking force, and has a ringtone memory function. 5Support One Key Network Configuration: Mobile phone installation APP device can be connected to the network according to the prompt, the connection is simple and supports remote control.