No camera here, but ultra-long range and ultra-loud chimes set this budget-priced option apart from the pack.

Broken doorbell? If you can do without video or smart home integration, Avantek has super-affordable—and much simpler—alternative: A battery-powered doorbell that gives you a quick and easy way to take any visitor-notification system wireless.

The DB-21 kit—Avantek has dozens of products in this space—consists of three components.
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