[Hidden-tech] Challenge - wireless mic to wiseless earbuds

[George Forman]

Dear Hidden Techies,

After many calls to communication retailers I have given up on generic advice on how to set up the following system inexpensively.
Imagine a tennis coach with a headphone mic talking to a tennis student on the other side of the net who wears wireless earbuds.
I need a wearable transmitter for the coach and a wearable receiver for the student.  Valley Communications priced this system to
be around $800.  I would like to know if I could use a standard lapel mic system one uses with a video camera that has a mini-jack
audio input.  The student would wear the receiver and plug in a set of earbuds into the receiver.  The receivers usually have an audio 
cable with a plug that goes into the video camera jack.  I thought I could use a female to female adapter to attach the earbuds to the
receiver.  But I am not sure the receiver would yield intelligible sound to earbuds since it is usually ported to a digital video camera.

I have thought about blue tooth components as well using my computer as both a transmitter and receiver, but have no idea if this would 
work.  Your wisdom and experience on this challenge would be greatly appreciated and thereafter shared with anyone else needing
to talk at a distance to someone whose performance you are trying to guide with verbal instruction (e.g. dancer, cook, or neigh, perhaps a
poker player :-).  

Thanks,




George Forman, Ph.D.
Co-Founder of Coach in the Mirror
Amherst, Massachusetts



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