I utilize Radio Shack cordless phones all around my house, but not the latest and greatest, just the cheaper and older 900MHz phones for my recorder and satellite phones. They tend to get through the walls and floors better and they don't get interference from devices that are in the 2.4 GHz range such as; microwave ovens, baby monitors, and wireless routers. The standard 2.4 GHz phones tend to have interference problems between these items. Sure you have channels you can rotate through, but your neighbor probably has the same 2.4 GHz type phone and can interfere too. The newer 5.8 GHz phones are pretty slick, but way too expensive for what you really need them for. Do you really need 4 satellite phones and one base phone/recorder that you need to program the base phone with the satellite phone? NO! Stick with the simple stuff, it is easier to trouble shoot and when it does eventually wear out, it's cheaper to replace.

I have a RCA Lyra wireless MP3 transmitter and receiver hooked up to a computer in the house and to my stereo. It allows me to play my MP3 collection (purchased on-line or ripped from my CD collection) that is stored on the home computer hard drive on my home stereo with out having to put wires between them. It gives me great sound but there is still a noticeable skip or delay heard every once in a while if the computer is doing something else that is CPU intensive. I can also listen to live streaming audio of On-line Radio Stations as well. It was relatively inexpensive to the alternative smart devices that hook directly to your home network and stereo, though the other devices handle managing your song play lists better.