Logitech Circle View Wired Doorbell

Dimensions
Height: 4.68 in (118.8 mm) 
Width: 1.65 in (41.8 mm) 
Depth: 1.10 in (28 mm) 
Weight: 5.33 oz (151 g) 

Technical Specifications

Connectivity
Wireless Connectivity: 2.4/5 GHz a/b/g/n/ac 2 x 2 MIMO Wi-Fi

Video
Camera FOV: 160-degree DFOV with 3:4 format Portrait View
Sensor + Video Quality: 5 MP Sensor with 1200 x 1600 HDR-enabled video
Night Support: Color night vision, automatically triggered based on ambient light sensor in front of camera
Night Illumination: 4000K LED light strip that provides illumination in an unobstructed area up to 6 Feet (1.8 m) away

Audio
Mic: Digital MEMS
Speaker: Mono
Two Way Talk: Full Duplex with Acoustic Echo Cancellation

Installation
Mounting: Screw based installation
Orientation Options: 0° straight view with straight mount; 20° left view or 20° right view with angle mount
Doorbell Wiring Support: 16-24 gauge cable, either solid or tinned stranded

Environmental Conditions
Weatherproof Rating: Doorbell - IP65; Chime Kit - Indoor use only
Supported Ambient Temperature (In the shade)8V to 16V Transformers: -20ºC to +40ºC (-4ºF to 104ºF)
17V to 24V Transformers: -20ºC to +45ºC (-4ºF to 113ºF)
Direct sunlight can heat the product, even in low ambient temperatures. The product may initiate protective measures, including shutting down temporarily (while still being able to ring the indoor chime) and automatically turning back on once cool enough.