The high-altitude low-noise propellers guarantee flight performance at high altitudes of 3,000-7,000 m, and the noise of the blades is reduced by 2 decibels compared with the standard 2110s propellers.

1. Using high-altitude propellers for extended periods may reduce the motor life and the max payload capacity of the aircraft.

2. If there is any damage to a propeller, replace it immediately.

3. When replacing the propellers, please also replace the corresponding screws and attach a proper amount of threadlocker (thread locker 243 is recommended) to the surface of the new screws.

4. DO NOT mix the 2112 propellers and other types of propellers during use.