So, you simply plug it into something, such as a laptop, walkman, MP3 player or similar, tune it to an appropriate frequency, tune your receiver to the same frequency and away you go. I used my laptop playing an audio CD as the source and my "boom box" portable stereo on the other side of the room as the receiver. The speakers built into the laptop are woeful, so the thought of being able to use the much better speakers in the boom box is very appealing.



Link: OCAU