Magnification 10x - Such magnification is found in military-grade binoculars.
Built-in compass - An added feature as a bonus to help you find your way.
You can tell it's crap by the enticing phrases they use in the blurb....they are obviously targeting a specific type of buyer, like one who would buy a copy of a Swiss Army Knife because not only does it cut bread but also has a built in thermometer.as an added feature.
It looks like one of the optical devices they used to sell in Lidl's from time to time.