In reply to Hephaestus:
> (In reply to simon kimber)
> Or, on a much more practical note, the beatifully designed, super rugged Minirig:
>
http://minirigs.co.uk/
>
>
> It just needs a gear loop and I'd never have to listen to birdsong on a route again. Most excellent!
Just pop it in a little dry bag along with your mp3 player, clip it on your harness and hey presto, you can annoy the f*ck out of anyone in a 100m radius, even in the rain!
They are seriously awesome, proper loud, last for ages on a single charge and when it gets low you can charge from usb, so any little solar panel will do it and everyone has a usb socket in the car these days. You can even daisy chain a load together to make a sweet line array! These things are building up quite a cult following.