【ONLY 2.4GHZ WI-FI,NOT 5GHZ】No wires and cables, just download the APP on your smartphone, and then connect it to 2.4GHz Wi-Fi with its help, so that your door camera wireless is always online, answer the door anytime, anywhere 【1080P FULL HD&2-WAY AUDIO】The doorbell camera has a 166° wide-angle lens and 120° human detection range, providing the best angle of view in motion detection performance. You can use the mobile app to talk to the person who rings the doorbell in real-time, or a pre-recorded 30-second voice message to quickly respond for easy convenience 【SMART PIR MOTION DETECTION&ALERTS】Built in PIR motion sensor can detect the slightest movement in front of the door.If someone passes, you'll get a push notification on your phone.Even if you're working in the office,shopping at the mall,or on vacation,you can always check for suspicious activity 【APP REMOTE CONTRO】The smart doorbell is easily connected to the APP, allowing you to place it outdoors without installing wires. The smart video doorbell supportsfamily members on the online app and is compatible with both for iOS and for Android 【SIMPLE INSTALLATION, NO WIRING REQUIRED】The home doorbell can be wall mounted on the door or wall mounted, with mounting screws and tools, powered by 2 18650 batteries (not included). No plug in required