Well, at the very end of 2015, after a few years in development the long awaited update to the highly regarded Angling Technics echo sounder is here! Connecting the high resolution narrow beam sent from every Angling Technics echo sounder built since 2008, Bluesounder displays all the detail you want onto your iPhone, iPad or even iPod. Replace your old monochrome screen with a colour display with up to four hundred times the resolution (yes that's 400!) Attach Bluesounder to a bankstick, turn it on and launch the app...simple!
I much prefer inmrofative articles like this to that high brow literature.