I am a retiree and spend most of my time at home; my old wireless doorbell died, so I was looking for a replacement doorbell (nothing fancy, no security cameras, etc.) for a good price (meaning cheap!), and requiring minimal fuss (no wires!). The Sad Tech Model C fit the bill, and is waterproof as well (my entry door does have an awning, but I'm hoping the waterproof model will stand up to the elements better). The doorbell itself does require a small battery, but the chime unit plugs right into a standard electrical wall outlet, so I won't ever have to replace batteries in the chime unit. Very convenient!
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