Product Features: *1- Support 4G and WIFI *2- Support OTA remote upgrade. *3- Support temperature and humidity display. *4- 4.3-inch full touch capacitive screen, flexible operation. *5- Support SOS emergency button. *6- Support 100 wireless zones, with customizable names for the first 10 zones. *7- Support 10 remote controls with customizable names. *8- Support 10 RFID cards with customizable names. *9- Support wired alarm numbers. *10- Support tuya smart / smart life APPs. *11- Support intelligent voice control such as Amazon Alexa, Google Assistant, IFTTT, etc. *12- Support 12 languages: English, German, Russian, Spain, Poland, Italy, French, Portugal, Greece, Romanian, Czech, Chinese *13- Support 5 sets of alarm phone settings, with separate settings for alarm SMS switch and dialing switch. *14- Support 20 second alarm recording SMS *15- Support wireless sensor battery low voltage prompt. *16- Support warning for doors and windows not closed. *17- Support voice operation prompts. *18- Support 5 defense zone modes, which can be set as doorbell mode. *19- Support remote deployment, disarming, monitoring, and intercom over the phone. *20- Support remote SMS settings. *21- Support user password protection: If an incorrect password is entered 5 times in a row, the keyboard will reject the input within 90 seconds. Kindly Remind: If you want to assemble your own alarm kit, please click on the picture below to select the models you want to purchase together.