That's not Walksnail... ad title says "something unspecified"-analog, and no goggles also.
The quad itself... the iFlight Nazgul is good enough though, but very much something much more powerful than what you've flown before (which is a...
Your answer is Post Number 27. The experienced member states:
"But a minute before the end of the flight that eased down to 15 ft and later to 9-10 ft above the water.
After about 7 seconds at <10 ft the flyer go 20 ft abve a touch of left stick...