MDF Auction - Metal Detecting Headphones
Mylar speakers? Cheap!
A Potentiometer and a toggle switch.
And a pair of ear defenders.
They looks frighteningly cheap to build to justify a £60+ price tag but lots of people seem to be making them and selling them on eVilbay of this amount and more.
Having said that it always surprises me how much things cost to build and I know there are a lot more overheads in running a business.
Can anyone shed some light on the build cost of these headphones and has anyone built their own?
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I can't imagine a set of detecting headphones being to hard to make but I personally wouldn't know where to start
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If a was to build some more I would use some better ear defenders to cut out any sound so when you detect next to a busy road you can't hear the traffic and hear any faint signal.
Found this excellent explanation of home build options.
http://treasurelinx.com/uploads/Headpho ... b_2013.pdf" onclick="window.open(this.href);return false;