SPECIFICATIONS Certification: CE Wifi Smart Door Bell Camera 4.3" Video Door Peephole Door Viewer 170 Degree Motion Detection Tuya APP Alexa Google Assistant Feature 1: 1080P Full HD Resolution & 170 Degree Wide Angle Feature 2: Convenient Communication by Two-way Intercom Video Feature 3: Smart PIR Moniton Detection Feature 4: Excellent HD Night Vision Feature 5: Super Battery Life and Worry-free Storage Security Mode: Fail Safe with Signal Smart home platform: Other,alexa,Tuya,Google Assistant PARAMETERS View angle: 170° Camera pixel: 1080P LCD screen: 4.3", 480*272 Battey capacity: 5000mAh Video and two-way audio: support Motion detection: support IR LED wave length: 850nm Battery charger: 5V/2A Door peephole: Φ14-28mm Door thickness: 35-120mm External storage:TF card (Support Max 128GB, Not included) VOICE COMMAND LIVE VIEW: The security camera that works with TUYA SMART LIFE enables you to control it with your voice. You can tell the courier where to put the package, or warn strangers, theft, voyeurs, etc. to stay away from your house. No need to open the door or communicate face-to-face, the smart doorbell camera with two-way intercom function can save your family from unnecessary danger or accident through the APP. The LED on the outdoor doorbell will light on automatically so that you can see clearly who is outside the door at night, Make sure your family is safe This doorbell camera will work in 24 hours, once it detected something moving suspiciously, it will take video and push notification to your phone automatically. Support max 128G SD card(not included), or use cloud storage, you can check video recording playback in your APP anytime. Energy conservation design, with 5000mAh battery, wake up 10 times one day, it can work for 180days. KIND NOTICE 1 Please charge for 6-8 hours before installation, kindly use 5V 1-2A Normal adapter to charge the doorbell battery. DON'T use fast charging sources or chargers that support multi-voltage. KIND NOTICE 2 The working frequency of this doorbell is WIFI 2.4GHz. If your WIFI router is 5G ones, please set your router to mixed frequency mode(5GHz and 2.4GHz mixed). This doorbell can work with 5G router which is set at mixed band.