Listings show both battery-powered and hardwired (electric) models. Some doorbells run on built-in or removable rechargeable batteries, while others require existing doorbell wiring for continuous power.
Most listings include motion-activated detection and specify motion angles. Reported motion-detection angles across products include 140°, 150° and 155°.
Night vision is commonly included. Many listings state a night-vision range of 30 feet, while some entries list night vision as 6 meters.
Most devices use hardware mounting (wall or doorframe) and list installation requirements. Options include battery-mounted units for flexible placement and hardwired models that use existing doorbell wiring for continuous power.
Some features require a sold‑separately subscription to access recorded clips and advanced tools. Product details describe cloud video storage options of up to 180 days for entries that offer extended storage.
Most listings include two‑way talk so you can hear and speak with visitors from your phone or compatible device, and they also offer Live View or real‑time video access to check activity remotely.