specialty outdoor gear

I can never understand why electronics manufacturers have to put a bunch of unnecessary "features" into whatever they make. I wanted a simple digital scale to measure road maps, but after wading through the confusing instructions, punching button after button to set up time zones and such, I finally got to the map measurer part. It required so many mathematical calculations to make the conversion to the proper scale that my head was spinning - and then when I used it on a local map where I knew the actual distances, it was way off. On top of that, the last digit on the LED screen would only light up partway. Poor quality, very difficult to understand and operate - I sent it back for a refund.

I bought this item locally, yesterday, took it home, set the clock, tried the measurer and the calculator. Everything worked fine for the first twenty to thirty minutes; then the device locked up. I tried pressing all the buttons, including the reset and nothing freed it. Then I tried uninstalling and reinstalling the batteries. Still nothing worked except a frozen time display.