433MHz Wireless WIFI + 4G Auto Dial Alarm Security System LCD Display Door Sensor PIR Motion Sensor Phone APP Remote Control Smart Home Security Alarm Features: 2.4" TFT LCD screen display and voice prompt for all operations. Support external wired siren, with squealing alarm sound. WIFI+4G alarm system with phone APP easily remote control. Including remote arm/disarm, parameter setting and accessory management. Push arm/disarm message to APP. (Note: APP for Android system.) Support for Voice Control. It can compatible with IP camera, you can know your baby and the older in your home from whenever and wherever. Support SMS and dialing alarm. Support 5 groups preset alarm phone numbers, SMS on/off and dial on/off can be set respectively. Can remote arm or disarm by phone, and with intercom and voice monitoring function. Multiple types of arm: Away arm, home arm, remote control arm, and remote telephone arm. Support up to 100 wireless defense zones for remote control, cards and wireless detectors. (You can add/delete remote control/wireless detector/ card as you need.) Support system password and user password, when alarm is triggered, only can be disarmed by putting user password. Coercion password, secretly make calls in emergency. The distance between the host and the accessories is 100 meters in the open, and about 60-80 meters in the shaded area. Timing arm and disarm. Multi language menu display (8 kinds optional). Users can make calls by using keypad on alarm panel, just like a telephone. Can store and inquire daily operate records and alarm records. Can record 20 seconds voice message and alarm voice. In emergency, press the SOS button on the remote controller, the system will start to alarm and call the preset phone numbers automatically for help. Built in Lithium rechargeable battery: still can make alarm when power off. Specifications: Power Adapter: DC 5V/1A (included) Working Current: <120mA Standby Current: <80uA Wireless Frequency: 433MHz Encoded Mode: 1527 Wireless Standard: IEEE802.11b/g/n  2.4G   4G US：B1,B2,B3,B4,B5,B7,B8,B28 4G EU：B1,B3,B5,B7,B8,B20 Alarm Panel Battery:  Li-ion DC 3.7V 500mAh (Included) PIR Sensor Battery: 3*AAA 1.5V (Included) Door Sensor Battery: 1*CR2450 3V (Included) Remote Control Battery: 2*CR2025 3V (Included) Siren Volume: 110dB Temperature Range: 0℃~55℃ Humidity Range: <80% RH (No freezing) Item Size: Approx. 18.5*12.5*1.2cm/7.28*4.92*0.47in Item Weight: Approx. 226g/7.97oz Package Size: Approx. 21.5*15*7.5cm/8.5*5.9*2.9in   Package Weight: Approx. 516g/22oz