Pretty much as advertised. Works great and does what I wanted which is to have another chime in the basement so I can hear the doorbell when I'm down there.Only one complaint - when the chime units are plugged in there is not enough room left to plug in another appliance into the duplex outlet. They should have located the plug-in prongs higher to accommodate this,1/4 to 3/8" would be enough.As far as "Waterproof", that remains to be seen as only had this a couple of weeks.
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