Second Generation (V2) – Master Airscrew Stealth Propellers for Mavic Air | Up to 3.5 dB lower noise (50% reduction in noise power) | Up to 14% (2.8min) longer flight time, 20% RPMs reduction | Included in the Set: 4 propellers (2CW and 2CCW), carry pouch, MAS stickers, and safety sheet. | Quick release propellers, genuine upgrade over OEM Mavic Air propellers.