Instruct: Classify Amazon reviews into positive or negative sentiment
Query: An expensive gadget that needs a training class and is really just a toy

I bought this for a hunting trip thinking it would be useful. Turns out the Compass is only semi accurate. The thermometer doesn't measure the air temperature it measures the temperature of you're wrist. Over a 10 day trip the weather changed from sunny 75 degree days to 6 inches of snow on the ground. The Barometer barely changed. You pretty much have to carry the instruction book around with you if you want to do more than change modes. At least the clock is accurate i guess.