I have had the 110 and it is a big POS did not pick up sats alot seem the guy who bought it said the antenna wire inside cam off..
I now have a 530 and it works great gps is awsome have the topo map and that is great can see the peaks and how high they are --NO COMPLANTS
the two way works great but im looking for a mic for it"anyone?"
Make sure you hook up the USB cable and get the latest chip upgrades.
There is suppose to be a patch to help GPS reception in trees
A good mic .... I was thinking of a throat mic like used in the military but have yet to find a good brand.