How to pronounce TH, voiced and unvoiced

The TH sound is one of the most difficult sounds to pronounce, not only for Italians but also for some native speakers - to make it you have to put the tip of the tongue between your front teeth. It can be pronounced with no voice, as in the words “think” and “truth” or with voice, as in “mother” and “than”. Laura from Smashing English shows us how to do it.