I understand the RS160 has been discontinued, although you can still find them all over the place.

But:

As I said, the transmitter WILL shut down, and it requires a button push to get it going. I know this for a fact, since I have that set at home, and I installed a set at my in-laws.

The only thing I don't care for is where the volume control is, and how easy it is to hit the wrong button so you turn the things off, instead of raising, or lowering the volume.