iSmartSafe Wireless Home Security System Basic Package - Cellular and WiFi Burglar Alarm - White No monthly fees, no contracts required, Do-it-yourself (DIY), Self-monitored and self-controlled Phone call alerts, text message alerts, push notifications alerts - Can add phone call/emergency contact alerts up to 6 persons Cellular and WiFi double connection - Always get double protection, Never worry about power outage, phoneline cut or WiFi signal Free App Control from iPhone and Android smartphone - Easy remote control and monitor, 2-way voice inter-communication Easy expansion and customization - Additional sensors (door sensors, motion sensors, and so on) can be easily added later. Our support team can be reached at Email: support@iSmartSafe.com, Tel: 832.696.0868