UniFi Protect G4 Doorbell. 1600x1200 (2MP) HD stream with night vision. Integrated entry lighting. Real-time two-way audio with echo cancellation. Built-in display, PIR motion detection sensor. Weather-resistant, Dual-Band 802.11ac Wi-Fi. UniFi Protect integration. The UniFi Protect G4 Doorbell is a Wi-Fi video doorbell with an integrated display and real-time two-way audio communication. The camera features a high-quality 5MP sensor with enhanced night vision. Video streams can be displayed in up to 1600x1200 (2MP) HD at 30 FPS. The doorbell includes a PIR sensor for instant motion detection alerts. Integration with UniFi Protect provides an easy-to-use interface.