Features: 480P HD Night Vision: This smart doorbell Features 2*850nm infrared LEDs for high-definition night vision, allowing you to see clearly even in low-light conditions. It provides a 1m night vision distance, ensuring enhanced security and visibility at all times. It offers a wide 120 horizontal and 90 vertical angle, providing a comprehensive view of your surroundings. Real-Time Two-Way Audio: With real-time two-way audio, you can communicate with visitors or delivery personnel directly through the doorbell. This feature enables convenient and efficient communication, enhancing the overall user experience. Only three users can preview the screen simultaneously at a time, and only one user can talk to the doorbell at a time. Chime Included: The ring doorbell comes with an RF 433MHz chime, providing an additional alert option for incoming visitors. You can place the chime in any room of your home, ensuring you never miss a visitor even if you are not near the doorbell. IP65 Waterproof: Designed with an IP65 waterproof rating, this 2.4G WiFi wireless doorbell camera is resistant to various weather conditions, making it suitable for outdoor installation. It can withstand rain, snow, and other environmental factors, ensuring long-lasting durability. Easy Installation: Firstly, scan the QR code or search for Aiwit on the compatible with Apple App Store or Google Play, download and install the app. Then register an account and follow the APP guidelines to connect the doorbell. You should marking drill holes and using a bit to drill holes in your wall, and then insert anchors and secure your doorbell with mounting and security screws. It also supports smart cloud storage, allowing you to store up to 5 pictures for each time, ensuring important moments are captured and saved. Specification: Product material: ABS Product size: 13.5 x 5 x 1.6cm / 5.31 x 1.96 x 0.62in CPU: XR872AT Memory: 32Mb flash Sensor: 30W GC0328 CMOS sensor / 30W BG0323 CMOS sensor Lens: 120 wide angle lens / 90 vertical angle Sensor performance: Supports automatic white balance, automatic gain control, and automatic backlight compensation Signal to noise ratio: 41dB Minimum illumination: 0.8Lux/F1.4 (color mode), 0.3Lux/F1.4 (black and white mode) Night vision: 2*850nm-28mil high-power infrared lamp Night vision distance: 1m / 3.28ft for best works Video format: JPG Video size/frame rate: 30W/8fps Recording mode: Button triggered; mobile phone wake-up, upload to cloud storage Cloud storage picture: 20 seconds (5 pictures) Battery discharge time: Polymer battery dormant and standby for 1 year Network protocol: TCP/IP/HTTP/UDP/DHCP/DNS/DDNS/NTP/RTP/P2P WiFi connection: 2.4GHz WiFi, supporting (802.11 b/g/n) Chime: Supports RF 433MHz Storage: Supports cloud storage function (hardware without TF card function) Working voltage: USB powered-5V, battery powered-3.7V Working current: 219mA Deep sleep current: 10uA Infrared working current: 280mA Instantaneous current when pressing the doorbell: 428mA USB charging voltage: DC 5V/1.5A Storage temperature: 0 -50 Operating temperature: Working temperature -10 - 50 , humidity