A Remote Blaster also known as a Wireless Remote Sender enables you to control your Decoder, Stereo, DVD Player e.t.c from another location different from where the device is placed.
Remote Blaster allows you to extend remote control of devices at long distances within a building using a radio frequency that can operate through walls, doors, and around corners, etc. It consists of a transmitter which is placed near the device you wish to control and a receiver that is placed in the room you want to control from.
HOW IT WORKS
Let say you have a decoder located in your sitting room and you have an extension that enables you watch what is showing on the decoder in your inner room.....the only problem is whenever you want to change the channel you have to go to the sitting room....you can solve that problem with a remote blaster. If you have a remote blaster installed you can change the channel, increase the volume and generally operate the device right from your inner room without going to the sitting room