Ring Video Doorbell 1, 2nd Gen has 1080 HD video, live view and night vision This video doorbell has advanced motion detection with adjustable motion zones This video doorbell has 155 degrees field of view and a 2-way audio with noise cancellation The video doorbell runs on a built-in, rechargeable battery This video doorbell can be hardwired to an existing doorbell system or transformer for continuous charging (8-24 VAC, 40VA max, 50/60Hz) The video doorbell has no halogen or garden-lighting transformers; no DC transformer/power supply This video doorbell has a recommended minimum upload speed of 2 Mbps per device and 802.11 b/g/n WiFi connection @2.4GHz Ring Video Doorbell 1, 2nd Gen is a state-of-the-art security tool for your home and family’s safety