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The blade is Mavic Pro platinum blade, with Mavic PRO use, the overall noise decreased by 4 dB.
You can reduce noise power 60%,Endurance extended to 30 minutes.
New aerodynamic design, excellent noise reduction performance, longer endurance time.
Main material: plastic. Diameter x pitch: 8.3*3.1 inch. Packahe contents: 2pair 8331 Propeller Pair
Can not be used with the MAVIC blade guards (fully enclosed version)