Description: High Definition Display: This Alarm System for Home Security features a 4.3 inch high definition screen for intuitive display and convenient operation.Advanced Operating System: The Door Alarm Security System utilizes an embedded operating system with a high performance ARM9 CPU for efficient functioning.Multiple Communication Services: The Home Alarm Security System supports various communication services including WIFI, , 4G, and .Multilingual Voice Prompt Feature: The Home Anti Thefts Alarm System comes with a voice prompt feature that supports ten commonly used languages (Chinese, English, German, Russian, Spanish, Polish, Italian, French, Portuguese and Greek).Smart Home Integration: The alarm system can be connected to the Tuya Cloud and controlled via voice commands or through app push notifications. Specification: Material: ABS PlasticSize: 11.2cmx18.2cmx1.6cm/4.41inchx7.17inchx0.63inch Size Chart: 100 wireless defenses zones, 4 wired defenses zones, can be equipped with 10 cards, can be equipped with 100 wireless accessoriesBuilt in high decibel , the sound can reach 115dB, optional solar outdoor sound and light Built in doorbells function, emergency function, optional doorbells button, emergency buttonBuilt-in anti-disassembly alarm function, armed doors and window are not closed alarmCan deletes defenses zones separately, customize defenses zone namesCompatible with video cameras, sockets, smart switch and other Tuya smart devicesReserve remote TCP/UDP channel, compatible with multiple alarm center networking protocols Package Includes: 1 SetAlarm System for Home Security(US Adaptor) Note: Please allow slightly errors 1-2cm differences due to manual measurement.