1、Full Touch Key: The alarm adopts embedded operating system, ARM9 CPU high performance operating, 4.3 inch HD capacitive screen touch screen, display more intuitive operating more convenient, touch dust proof keyboard, two way voice intercom function, easy control for the elderly and children, providing intelligent life. 2、Multiple Communication Service: The home security system supports access to for Tuya Cloud, APP push, comes with voice prompt function, supports 10 common national languages (Chinese, English, German, Russian, Spanish, Polish, Italian, French, Portuguese, Greek) 3、SOS One Touch Alarm: The home security system has 100 wireless zones, 4 wired zones, can be equipped with 10 Radio Frequency Indentification cards, can be equipped with 100 wireless accessories, comes with a high decibel alarm, the sound can reach 115dB, optional solar outdoor sound and light alarm, built in jingle bell function, emergency help function, optional jingle bell button, emergency button. 4、Real Time Display of Time and Date: This home alarm system will automatically switch based on the local weather, weather changes, ambient temperature and humidity at a glance. 5、Multifunctional Alarm: This home alarm has mains power failure alarm, backup battery shortage alarm, sensor battery low voltage alarm, comes with antitampering alarm function, arming door and window left open warning, which can individually delete the zone and customize the zone name. 6、Excellent Compatibility: The alarm is compatible with video cameras, smart sockets, smart switches and other for Tuya smart devices access, reserved for remote GPRS TCP UDP protocol channels, compatible with multiple alarm centre networking protocols Item Type: Home Security System Material: ABS Model: PG 109 Input Voltage: DC5V (powered by micro USB standard interface) Operating Current: <300mA when the screen is resting, <500mA when the screen is lit Standby Current: <200uA Alarm Output: <560mA Wireless Frequency: 433Mhz/2.4G/125K Wireless Code: ev1527 GSM Standard: 850 900 1800 1900MHZ WIFI System: IEEE802.11b g n wireless standard Backup Battery: 1 x 3.7V/1000mAh Li Battery (Included) Operating Temperature: -10 to 55°C Relative Humidity: <80% (non condensing) Size: Approx. 112 x 182 x 16mm / 4.41 x 7.17 x 0.63in (LxHxT) Door Magnet Power Supply: 1 x 3V button cell 80mAh (Included) Infrared Detection Power Supply: 2 x 1.5V AAA batteries (Included) Remote control power supply: 1 x 3V button cell 80mAh (Included) Memory Card: (Not Included) 1 x Home Security System 1 x Infrared Detector 2 x Door Magnet 2 x Remote Control 2 x Access Card 1 x Speaker 1 x Charging Cable 2 x Fasteners 5 x Screw 5 x Expansion Tube 1 x Connection Cable 1 x Mounting Base 1 x Instruction Manual