Works but makes a weird sound

We got this foot pump to replace the hand pump we use for our air mattresses.  It stores much smaller than the hand pump we had.  Has two different valve sizes and has a deflate mode as well.  Overall works well and I like it but there is a downside. When pumping it makes a terrible high pitched whistle so there is nothing quiet or sly about this. If you try to do it when someone is sleeping they won’t be anymore.  I don’t know if it is just that the plastic is new or what. It doesn’t do it as loud in deflate mode so that’s something.  So it’s a bit annoying but it does work well so I guess overall worth it. #rankboosterreview #sponsered #footpump #inflate #kingcamp https://www.amazon.com/KingCamp-Foot-Camping-Sleeping-Mattress/dp/B01DJZS3QU