Ring Video Doorbell (2nd Gen) Satin Nickel

Power: Runs on a built-in, rechargeable battery / Can be hardwired to an existing doorbell system or transformer for continuous charging (8-24 VAC, 40VA max, 50/60Hz) / No halogen or garden-lighting transformers; no DC transformer/power supply
Internet Requirements: Recommended minimum upload speed of 2 Mbps per device
Connectivity: 802.11 b/g/n Wi-Fi connection @2.4GHz
Operating Conditions: -5ºF to 120ºF (-20ºC to 48ºC), Water Resistant
Setup Requirement: Only if wiring in: Standard doorbell system or transformer with 8-24 VAC, 40VA max, 50/60Hz
Dimensions: 2.4 in. x 4.98 in x 1.10 in (62mm x 126.5mm x 28mm)