upport WIFI - You can remote control the system by using alarm APP on your phone,when the alarm system be triggered,the system will send message to APP via WIFI,so user do not need pay any fees.<br>Support PSTN - Connect W1 with telephone line,when the alarm system be triggered,W1 will auto call your phone number.<br>APP remote control - Download the app on your smart phone,support IOS/Andriod,so you can control the home alarm systems through your phone anywhere/anytime<br>Learn additional accessories - W1 can work with 64 wireless sensor and 8 remote controllers.For example,work with IP camera,when you receive the alarm notify,use the camera to view real-time situations on your phone.<br>Scheduled arm/disarm - 4 groups scheduling arm/disarm function to finish fully intelligent automatic control t