Reolink Video Doorbell WiFi Black, White

Human detection: Yes | Illuminated push button: Yes | Ethernet interface type: Fast Ethernet | AC input frequency: 50/60 Hz | Mounting type: Wall | Megapixel (approx.): 5 MP | Built-in speaker(s): Yes | Maximum frame rate: 20 fps | Operating temperature (T-T): -10 - 50 °C | Built-in microphone: Yes | Power source type: DC | Screws included: Yes | Night vision: Yes | Weight: 96 g | Echo cancellation: Yes | Width: 48 mm | Reset button: Yes | Maximum aperture number: 2 | Fixed focal length: 2.26 mm | Wi-Fi: Yes | Smartphone/tablet remote support: Yes | Web-based management: Yes | Horizontal field of view: 134° | Housing material: Acrylonitrile butadiene styrene (ABS) | Compatible memory cards: MicroSD (TransFlash) | Audio system: 2-way | Housing material: Polycarbonate (PC) | Video formats supported: H.264 | Height: 133 mm | Supported network protocols: HTTPS, IPv4, UPNP, RTSP, RTMP, ONVIF, SMTP, NTP, DHCP, DNS, DDNS, FTP, P2P | Product colour: Black | Mobile operating systems supported: iOS | Mounting bracket(s) included: Yes | Diagonal field of view: 180° | Works with Amazon Alexa: Yes | Card reader integrated: Yes | Mobile operating systems supported: Android | Sensor type: CMOS | Works with the Google Assistant: Yes | Wi-Fi standards: 802.11b | Wi-Fi standards: Wi-Fi 4 (802.11n) | Quick start guide: Yes | Wi-Fi standards: 802.11g | Waterproof: Yes | Image sensor size: 1/2.7" | Depth: 23 mm | Built-in camera: Yes | Noise reduction: Yes | Product colour: White | Number of melodies: 10 | Connectivity technology: Wired & Wireless | Frequency: 433 MHz | Maximum memory card size: 256 GB | DC input voltage: 12 - 24 V | Input voltage: 24 V | Wi-Fi standards: 802.11a | Maximum video resolution: 2560 x 1920 pixels | Operating temperature (transmitter): 10 - 90 °C | Bell height: 8.65 cm | Bell width: 2.9 cm | Number of ringer volume levels: 5 | Motion detection supported: Yes | RJ-45 ports quantity: 1 | Bell depth: 6.6 cm | Number of push buttons included: 1 pc(s) | Vertical field of view: 97° | Warranty period: 2 year(s) | Number of main unit included: 1 pc(s)