Foscam DBW5 Features 2K Video & DIY installation: High Definition 2688 x 1520 resolution, combined with advanced HDR and distortion correction, provides you 2K@25fps crystal clear images in low light or bright conditions. 850nm SMD IR-LED enables excellent night vision image, range up to 16ft. Ultra wide angle lens, view angle up to 170. With the included wedge kit, you can DIY your ideal angle from 5 degrees to 15 degrees to get a greater view of visitors coming to your door. | 2-way audio & power supply: Foscam video doorbell supports real-time two-way audio with built-in mic and speaker. Compatible with your existing mechanical and electronic digital chimes. You can utilize your existing doorbell wiring (AC8~24V/DC12~30V) or USB-C 5V power supply( USB-C cable included ) to power it. This doorbell is not battery powered. NO more worries about battery life or charge. You can customize exclusive ringtones through Foscam APP. | 2.4GH z & 5Ghz WiFi Connection: You can pair it with either 2.4GH z or 5GHz network. 5GHz channel with less interference makes the network more suitable for applications like video streaming which is very sensitive to packet loss and delays. You can experience smoother 2K Quad HD streaming. | 7 days free cloud storage with 3 months validity and NO data space limitation during the last 7 days. Able to view live or play back or save all alert captures and video clips on the cloud. More options for cloud storage are available. Support FAT32/exFAT Micro SD