The Mavic Pro Platinum Low-Noise Quick-Release Propellers (Gold Tip)
The propellers are for the  DJI Mavic Pro PLATINUM Drone, and can make the overall noise drops 4d.  It can reduce the noise power 60% and they can make the fly time extended to 30 minutes.
 

Mavic Platinum - Low Noise Props 8331 Yellow Tips

£9.99Price