Features 1???? 2.4 inch TFT full color LCD screen display, ultra-thin, ultra-small and delicate touching design, beautiful. 2???? Full-range voice color display operation, wireless transmission, easy installation. 3???? One machine three networks (WIFI + GSM + GPRS), always Net, safer, more assured. 4???? One machine three functions(doorbell + telephone + burglar alarm), intelligent perfect. 5??* Tuya APP remote control, and compatible with Amazon Alexa, Assistant for voice control. 6???? One-button SOS secret call for help; support duress code, can secretly call the phone in case of emergency; care for life secure. 7???? Support multiple languages, Chinese, English, German, Korean, Spanish, Portuguese, French, Arabic, Russian. 8???? Self-contained pet volume identification, can effectively prevents pets from interfering with false alarms 25KG. 9???? Support remote WIFI network APP alarm push, phone, SMS, and other multi-channel alarm mode and management. 10???? Support 5 groups of preset alarm call phones and text messages, set its SMS switch and dial switch separately. 11???? One-button operation automatically increases the wireless detector series accessories, no need to separate zones, attributes, names, etc. 1 2???? Support main door, lobby, help, bedroom, window, balcony, perimeter, smoke, gas , carbon monoxide, water leakage, doorbell, PIR detector, door magnetic detector, and other zones name and number can be set arbitrarily. 1 3???? Support multiple zone type settings such as access zone, internal zone, perimeter zone, doorbell zone, 24-hour zone, etc. . 1 4???? Support multiple extended alarm display and alarms such as main power failure, backup battery defect, anti-smash alarm, etc. 1 5???? Double speaker alarm sounding design, built-in speaker, can be connected with external siren. 16???? Support zone scam arbitrarily input. Specifications Overview: This one machine three (doorbell + telephone + burglar alarm) intelligent perfect. 2.4 inch TFT full color LCD screen display, ultra-thin, ultra-small and delicate touching design, beautiful. One-button SOS secret call for help; support duress code, can secretly call the phone in case of emergency; care for life security. Features: ?? 2.4 inch TFT full color LCD screen display, ultra-thin, ultra-small and delicate touching design, beautiful. ?? Full-range voice color display operation, wireless transmission, easy installation. ?? One machine three networks (WIFI + GSM + GPRS), always Net, safer, more assured. ?? One machine three functions(doorbell + telephone + burglar alarm), intelligent perfect. * Tuya APP remote control, and compatible with Amazon Alexa, Assistant for voice control. ?? One-button SOS secret call for help; support duress code, can secretly call the phone in case of emergency; care for life secure. ?? Support multiple languages, Chinese, English, German, Korean, Spanish, Portuguese, French, Arabic, Russian. ?? Self-contained pet volume identification, can effectively prevents pets from interfering with false alarms 25KG. ?? Support remote WIFI network APP alarm push, phone, SMS, and other multi-channel alarm mode and management. ?? Support 5 groups of preset alarm call phones and text messages, set its SMS switch and dial switch separately. ?? One-button operation automatically increases the wireless detector series accessories, no need to separate zones, attributes, names, etc. ?? Support main door, lobby, help, bedroom, window, balcony, perimeter, smoke, gas , carbon monoxide, water leakage, doorbell, PIR detector, door magnetic detector, and other zones name and number can be set arbitrarily. ?? Support multiple zone type settings such as access zone, internal zone, perimeter zone, doorbell zone, 24-hour zone, etc. . ?? Support multiple extended alarm display and alarms such as main power failure, backup battery defect, anti-smash alarm, etc. ?? Double speaker alarm sounding design, built-in speaker, can be connected with external siren. ?? Support zone scam arbitrarily input. ?? Timing cloth disarming and Message operation. ?? Support phone function, similar to an ordinary telephone. ?? Support electrical switch linkage. ?? The user is disarmed and the host alarm is pushed to the APP. ?? Support IOS system, Android system (android) mobile APP remote alarm, cloth disarming. Specifications: Power supplys: 110 ~ 230VAC (input) 5V / 1.0A (output) Remote Control Battery: CR2032 button battery 210mAh (included) Doorbell Battery: CR2032 button battery 210mAh (included) Backup battery: 3.7V/500 mAh Standby current: ??80uA Alarm current: ??500mA GSM network communication system: 850/900/1800/1900mHz FIFI standard: IEEE802.11b/g/n wireless standard Working temperature: -10??C-60??C Working humidity: ?Q95% Wireless frequency: 433MHz Alarm alarm horn: ??85dB Transmission outdoor wireless power: 10??14dB Alarm transmission: FIFI+GSM transport Product size: 160 * 100 * 12.5mm / 6.3 * 3.9 * 0.5in Package size: 28 * 18 * 12cm / 11 * 7.1 * 4.7in Package weight: 900g / 1.98lb Package List: