Home Automation - need a simple wall switch remote....does that exist?

Maybe this is the wrong forum, but here goes...

I have an older relative who doesn’t get around well. They want me to install a remote to their overhead light in Master Bedroom. That is, be able to control the wall switch remotely.

They already have one of these in another room. It is a switch that replaces the original wall switch so it can operate manually (normally), but adds a second switch you can mount across the room. The prodict is old, but surely it still exists. No kind of marking I can find as to manaufacturer.

I went to Lowes…HD….no one can help. They can offer $35-50 ceiling fan remotes…but that’s overkill…its one little light. This isn’t a “smart house” and I am not trying to fry an egg or fix a latte from the bedroom…just kill the overhead light so Granny doesn’t have to get out of bed. I see many remotes to plug say a bedside lamp into...but this is to control an overhead...so its more of a wallswitch remote.

Any suggestions what this product is called and or where to find one?

Thanks.

THB

http://www.homedepot.com/webapp/wcs/stores/servlet/ProductDisplay?storeId=10051&langId=-1&catalogId=10053&productId=100399015&N=10000003+90401+502289

Here's one..I've seen cheaper.

Check at an electrical supply or lighting showroom. I had one that was a wireless extension switch you could just attach to the wall. Worked just fine as a remote for my outdoor floods.

In my local mega mart home center they are available in the electrical aisle where the DIY wireless alarm system components are located.