Skybell HD Wi-Fi Video Door Bell, Volts:10-36 VAC,10 V or 12 DC, Amp Rate:0.5 to 1.0, Operating Temperature:-40 F to 150 F(-40 C to 65 C), Compatible with Digital Chime-Requires Adapter(Not Included), HD Camera:1080P/720P Resolution, 180 Degree Wide Angle View, Full Color Night Vision, Audio:Omnidirectional Microphone, 2-Watt Speaker, Wi-Fi Connection:802.11B/G/N, 2.4GHZ, Video Storage:Optional Cloud-Based Service for Video Recording, 100 Waterproofed, Dims:2.8" Diameter X 0.9"D, Weight:2 oz, In Mfg Box, Made in USA.(Alt Wnsksh02310S) Digital Chime Adapter (Not Included)