Posted: Wed Jul 04, 2012 7:55 am
We use this product from Extron and it works extremely well. You need T model to transmit and a R model to receive. I have seen these on ebay and such for anywhere from 25$ to 100$ per piece. Extron typically sells only through authorized dealers which we are fortunate enough to have one in our Stake.
http://www.extron.com/product/product.a ... type=4&s=4
http://www.extron.com/product/product.a ... type=4&s=4