Ring Pro WiFi doorbell

Tech SpecsSize and ColorDimensions4.50 in. x 1.85 in. x .80 in. (11.43cm x 4.67cm x 2.03cm)Available ColorsSatin Nickel, Pearl, Venetian, BlackFeaturesVideo1080 HD Video, Live View, Night VisionMotion DetectionCustom Motion ZonesField of View160 DegreesAudioTwo-way audio with noise cancellationWorks with AlexaIlluminates and sends announcements to Echo devices when visitors press your doorbell button or motion is detected, and lets you see, hear and speak to visitors with select Echo and Fire TV devices.Power and ConnectivityPowerRequires a 16-24 VAC transformerInternet RequirementsRequires a minimum upload speed of 1Mbps, but 2 Mbps is recommended for optimal performanceConnectivity802.11 b/g/n Wi-Fi connection @2.4GHz and 5.0GHzInstallationOperating Conditions-5°F to 120°F (-20.5°C to 48.5°C) - Weather ResistantGeneralWarranty1 year on parts, theft protection