There is some dexterity required. I wouldn't consider it to be too difficult but its definitely not self-working and does require some sleight of hand to get prepared.
You need to be able to move your fingers in a smooth, controlled manner. To set up you also need to locate some fairly small items in your pocket and place them in specific locations.
I hope that helps. Reach out to customer support and I can get more specific.
Answered at 07:40am on June 12th, 2019 by joshburch (244 karma)