I agree with LarryJoe. I'm an X10 junkie. Got 2 MouseRemotes, the Video Sender, IR Remote Extender, and literally dozens of home automation modules connected to lights, switches, outlets, and my garage door.
The 2.4GHz wireless audio/video transmitter works very well for me. As does the other stuff.
Yes, they do send a lot of e-mail, but you can opt-out if you like. I finally did. Oh, and their website looks like a 6 year old designed it, but that's no reason not to buy from them.