With winter fast approaching, we know Jack Frost can make it extremely difficult to make phone calls with our smartphones--and the mittens that have removable tops are so unfashionable. Fortunately for us all, here comes hi-Fun™, a company that creates accessories that render listening to music an even more original, and multi-sensorial experience. hi-Call™ is aWith winter fast approaching, we know Jack Frost can make it extremely difficult to make phone calls with our smartphones--and the mittens that have removable tops are so unfashionable. Fortunately for us all, here comes hi-Fun™, a company that creates accessories that render listening to music an even more original, and multi-sensorial experience. hi-Call™ is a