Same as that just no name on it eBay £8-00 about 6 years ago, used on on quite a few occasions, from looking down a blocked sink waste (Waterproof) to looking behind an engine to try to locate a nut that had fallen off the back of a bolt, with sight I was able to pick it up with a telescopic magnet, without it the magnet stuck to just about everything but the loose nut .
Looked inside a box section on a car chassis.
Great little tool, USB, Needs a App download to operate (Endescope).
Plugs straight into a Galaxy S6, light brightness is adjustable, takes pics and video.