Ubiquiti G4 Doorbell Professional PoE Kit. Product colour: White, Volume: 80 dB, Best uses: Home. Megapixel (approx.): 5 MP, Second camera resolution: 8 MP, Maximum video resolution: 1600 x 1200 pixels. Connectivity technology: Wired, Ethernet interface type: Gigabit Ethernet. Power source type: PoE, Power: 7 W, DC input voltage: 37 - 57 V. Width: 51.7 mm, Depth: 28.7 mm, Height: 160.6 mm