NON-STOP POWER SUPPLY: Equipped with 40 single crystals on the side 180 degrees above to receive sunlight, it can keep your wireless video doorbell camera getting power from the sun,...

battery-powered & USB powered 4 levels of adjustable volume 4 adjustable ringtones Adjustable 0-110dB volume range. Flashing indicator alerts. Wireless range up to 656ft(200m) in the open area.

Compatible with J7/J9 video doorbell Adjustable 25 To 50 Degrees Provide More Eyesight: You can also choose your ideal angle directly, and get a great view of visitors coming to...