Good unit of work for the dollar. I modified the strap a bit so I could fit it on my Autel Evo 2. I had to add. 2 inch Velcro. I also added a small metal ring that fits through the hole in the strap's plastic connector so I can thread the cord through it to prevent the drone's blades from catching the cord. I did a test at 1000 feet to see if it should work. Pressed the button 3 times instead of 1 and it has worked so far.