Product information: Specification?Standard WIFI+GSM set (order please note need power supply), standard +1 door sensor +1 infrared (order please note need power supply), standard +1 infrared +1 door sensor +3 door card (order please note need power supply) Features: 1. Adopt 2.4 "TFT color display screen, fresh style man-machine interaction interface 2. Use a 32-bit Cortex-M 3 core based CPU with powerful built-in performance 3. Support WIFI/GSM/4G/GPRS multiple communication services 4. Built-in voice prompt function, support 9 commonly used national languages (Chinese, English, German, Russian, Poland, Portugal, Spain, Italy, French) 5. Support access to Doodle Cloud, Alexa intelligent voice control, APP push 6.200 wireless defense area, can be equipped with 10 RFID cards, can be equipped with 200 wireless accessories 7. With high decibel alarm, the sound can reach 115dB, optional solar outdoor sound and light alarm 8. Built-in doorbell function, emergency help function, optional doorbell button, emergency button 9. It has the functions of power failure alarm of main power supply, power failure alarm of backup battery and low-voltage alarm of sensor battery 10. Built-in anti-demolition alarm function 11. You can delete the defense zone and customize the defense zone name 12. It is compatible with video cameras, smart switches and other doodle smart devices 13. Reserved remote GPRS TCP/UDP protocol channel, compatible with multiple alarm center networking protocols Packing list: Set1: Standard WIFI+GSM package Set2: Standard +1 door status sensor +1 infrared Set3: Standard +1 infrared +1 door sensor +3 door card