Squeaking Noise on 2003 Ford Explorer

While driving slow with the windows down, I hear a squeaking noise coming from underneath...just wondering if I need new shocks, vehicle dosnt bounce roughly but can feel hard when hitting bumps in the road.

Asked by for the 2003 Ford Explorer
Is this a constant repetiive squeaking noise that gets faster and slower as you drive faster or slower? Or is it a simple instantaneous nosie?
Constant repetitive noise,as go faster,it gets faster or vice versa.