You can hide the min and max values,by using the hideRange option.
You can change the step with which the handle moves,using the step:10option.
Changing your default min,max and start values is pretty easy.
(min:16 / max:256 / start:128)
The callback function is invoked on slider initialization and on slider handle movement.
The default Powerange slider is horizontal. However,you can make it vertical,by setting vertical:true.
Cool,comfortable,responsive and easily customizable range slider