rotor performance and flight controller features$/$capabilities$,$ body frame construction, the caliber of the obstacle sensors$,$ and the amount a company spends annually on training its drone$-$related PATs and improving its drone$-$related assembly methods $($since such spending can affect defects encountered and the need for repairs$).$

the amount a company spends annually on training its each of its drone$-$related PATs and improving its drone$-$related assembly methods, rotor performance, the hourly wage rate paid to drone PAT members, the productivity of the company's drone PATs, and the warranty claim rate.

battery life, the quality of the camera stabilization device in the company's drones, the length of the company's drone warranty, the frequency of drone flight crashes, cumulative spending on training the pilots that test each drone assembled, and whether the number of drone models the company offers for sale is above$/$below the all$-$company industry average.

the image sensors of the built$-$in camera, the image quality of the action videos, the length of the warranty period, and the amount by which the total annual compensation paid to members of drone PATs is above$/$below the industry average.

the average number of minutes of flying time of the company's drone models before having to recharge$/$replace the battery, the number of obstacle sensors$,$ the number of extra performance features, the frequency with which the company's drone models have to be repaired or parts replaced, and the amount a company spends on training its drone pilots to properly test each drone coming off the assembly line.