Just saw this one, with just over 2 hours left ;
http://www.ebay.com.au/itm/Beltronic...79d2224&_uhb=1
Can't see if it's an S7 or an M4, or if its a red or a blue LED. If its blue, its definitely an M4 horn.
I've got an S7 version as my backup/for Mrs car, and its definitely a sound detector for the money, although quite a few laser falses.
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