The sprayer drones for agriculture in the video are for one Brazil customer.
It is model JT6L-606, one low budget model which is on promotion,
detail specification and detail pictures: http://www.joyancetech.com/html/sprayer/products/5L_agriculture_sprayer_drone.html
detail promotion information: http://www.joyancetech.com/html/news/news/Low_Budget_Low_Risk_to_try_a_sprayer_drone.html
All the drones we sell out are ready-to-fly sprayer drones.
Before despatch, every drone is 100% tested and has to pass through a rigorous quality control test to confirm it meets the highest standards in performance and durability.