Product review (5 stars): Wonderful product
This is a great product and reasonably priced too.  Mine is plugged into the outlet for the garbage disposer under the sink. It makes my life much easier now that I just push a button on the kitchen counter to start and stop the disposer rather than having to move 4 feet to reach the disposer switch on the wall.

The only negative I have found is that the transmitter has a very tiny screw that has to be removed to put in the battery.  Also, the battery is not one that most people would have in stock in their homes.  I found the battery in a discount store, so it is readily available.