Posted by a reviewer on Amazon

Make sure to plug in both transmitters use a surge protector if you are already using your plug for something else

Posted by a reviewer on Amazon

Was unable to hear people knocking at apt door in senior housing

Posted by a reviewer on Amazon

The doorbell button unit has the option to stick it to a door frame or use the screws provided

Posted by a reviewer on Amazon

The actual doorbell takes up very little room and is unobtrusive

Posted by a reviewer on Amazon

Only had them a couple of days but already paid for itself since i order quite a bit from amazon and always worried my stuff will be stolen after the driver leaves a big problem in my city

Posted by a reviewer on Amazon

Now we always know if someone is at the door

Posted by a reviewer on Amazon

Large two story house signal penetrated just fine thru closed doors even at the furthest points on both floors

Posted by a reviewer on Amazon

When they stop working its too annoying to figure out which end has the dead batteries