OK this may not be happening everywhere, but my local Target has something called a Universal Wireless Kit for XRocker. It's a 900 MHz wireless transmitter/receiver that I guess is made for gamer chairs. Anywho, it's clearance priced at $7.48 (originally 29.99). So I bought one and it's pretty basic, but works. Each unit has 1/8" stereo jacks and a 3 band switch. Comes with adapters for RCA too. They run off 2AA batteries or 3vDC. I've got mine connected to my PC and a small boombox and now have HS speaking thru it in my basement. Cheap & Easy whole house audio and the sound quality isn't bad either. These were on the Clearance End cap of Electronics in my store.