Feature: 1. 2.4 inch TFT full color LCD screen display, touch keyboard operation, wireless transmission, simple installation. 2. One machine with three networks WiFi + GSM (2G) + GPRS, eternal network, safer and more secure. 3. One‑key SOS secret distress alarm, support duress code, secretly call the phone in emergency situations (default alarm tone or set). 4. Support bell button prompt function, one ‑ key operation to add wireless accessories, no need to partition, attributes, name, etc. 5. Support 9 languages, like Chinese, English, German, Korean, Spanish, Portuguese, French, Italian, Russian (Default English) . 6. Support remote WIFI network APP alarm push, phone, SMS, and other multi‑channel alarm mode and management. 7. Intelligent voice control: the alarm host supports for ALexa and for Google home intelligent voice control, which can easily arm and disarm the host. 8. Support 5 groups of pre‑alarm calls and SMS numbers, support each group number off/on management, horn alarm ring design, built‑in horn. 9. Support arbitrary setting of multiple zone names and numbers, like Main door, hall, SOS, bedroom, window, balcony, perimeter, smoke, gas, carbon monoxide, water leakage, doorbell, PIR detector, door magnetic detector. 10. Support the setting of defense area types such as outside defense area, left‑behind defense area, doorbell, silent defense area and 24‑hour defense area. 11. Supporting main power failure, backup battery weakness, anti‑pry alarm and other extended alarm display and alarm. 12. Support free arm and disarm function, area cheat number arbitrary input, time arm and disarm function and message operation, telephone function, password management for 1 group of users (off by default). Specification: Condition: 100% Brand NewItem Type: Alarm System Material: ABS PlasticColor: As Pictures ShownInput Voltage: DC5V Alarm Host Backup Battery: 3.7V/ 500mah (Built-in) Power Supply Mode of Wireless Infrared Detector: 2 x AAA Battery(Excluded) Wireless Door Magnetic Power Supply Mode: 1 x 23A 12V battery(Excluded) Standby Current: ≤10uA Alarm Current: ≤500mA GSM Network Communication Frequency 850/900/1800/1900mHz Support GSM Network: 2GWiFi Standard: IEEE802.11b/g/ N Wireless Standard Operating Temperature: -10℃-60℃ Working Humidity: ≤ 95% Wireless Frequency: 433MHz Built-In Alarm Siren: ≥85dB . Package List: 1 x Alarm Host1 x Wireless Infrared Detector1 x Wireless Gate Magnetic Body1 x Wireless Gate Magnetic Accessory Body2 x Wireless Remote Controller1 x Wireless Doorbell Button1 x USB Cable2 x Mounting Screw Pack3 x Tape1 x Wireless Infrared Detector Mounting Bracket1 x Instruction