Each DJI Air 3 Low-Noise Propeller has been put under a precise dynamic balancing tests to increase aerodynamic efficiency and output less noise.

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All DJI brand products are non-returnable after any packaging has been opened.

If a DJI product has an initial manufacturer defect, the item may be exchanged within 7 days of original purchase. However, if there is any noticeable damage to the product, we cannot accept the exchange or return. If 7 days has passed since purchase, the defect should be addressed through the manufacturer's warranty: https://www.dji.com/support/product

We apologize, but there are no exceptions to these conditions for DJI products.