Mobile only detection

I’m looking for any possible way to get this plugin to work on mobile and tablet devices only. (Not desktop)The reason for this is that i have a static sidebar on my site which is great but its disabled to mobile/tablet devices so shows a lot of white space and this plugin will be great for this as the sidebar does not move into position until a person has lifted there finger off the screen.

Any help appreciated
My Site
https://www.chimpdesigns.co.uk

http://ww.wp.xz.cn/extend/plugins/strx-magic-floating-sidebar-maker/