For Rohit
The unit is called a Wireless Remote Control Extender. Not sure of cat# but I still see them advertised. I have one transmitter that is about 50' away. It works okay. It is in my computer room and I found that I needed to place it 2 - 3 feet away from the computer stuff or it wouldn't transmit reliably. The Pronto unit works VERY well with it. I guess because it's IR signal is stronger and pointing directly at the pyramid isn't as critical. Remember at Radio Shack they will take stuff back with much hassle so give it a try and see if it meets your needs.
There are also other brands. Check Home Controls.
www.homecontrols.com.
My DirecTV receiver is in the dining room and I have used these units for 4 years to switch channels from the living room and also from my back bedroom(computer room)