ETREX The world's smallest GPS provides satellite navigation you can count on, pure and simple. A 12-channel GPS locks onto satellites fast and stays locked on, even under extreme conditions. A built-in antenna allows this sleek unit to slip into your hand, pack or pocket with ease. Operations are equally easy and logical. The eTrex is proof that GPS doesn't have to be difficult.

Review Garmin etrex series
Come hill or high water, with an eTrex® GPS by your side, You can go beyond your limits without looking back! Wherever you spend your spare time, we have a compact, Go-anywhere GPS receiver to suit your escapades, from basic Requirements to the ultimate in navigational tools. They are Waterproof, lightweight, low-cost and friendly to use, plus With the choice of MapSourceTM capabilities, you can discover The possibilities and get out of your comfort zone!

What is GPS http://www.mncgroup.co.uk/gps/info.htm