Particle Properties > Press "+"

Select the type "Hair".
Change the NUMBER and LENGTH of the hair.

Children > Interpolated

Mainly, use "Uniform" , "Endpoint", and "Threshold".

Try changing the settings as you like.

You can control the hair detail by Particle Properties.

When you duplicate the setting,
Press "+" > Choose the same Particle > Add new particle settings

The same hair setting but controllable separately

Now, you have two different hairy balls.