Description - Add this additional speaker for high-quality stereo sound from your EVOKE-1S or TEMPUS-1S radio. Features a matching full-range 3" drive unit, is base-ported and has a 3m cable. Designed to match your radio in style and finish.
Now down from extortionate to just over-priced!
Seriously, I bought a black one for my Evoke Flow & it certainly does make a difference. Certainly not worth the £30+ it's going for elsewhere, just about right it at this price.