Where can i get the thing that go over headphones?

Turntable Lab has iGrado headphones selling for $49.00
The new portable, street style headphones from Grado Labs. While these are definitely the most "commercially appealing" headphones we've seen from Grado, and might come as a shock to people used to Grado's subtle "substance over style" approach, you can rest assured that the only thing they've changed is the packaging. The iGrado's are built from a platform that uses the same drivers found in their popular SR60 headphones, which means you'll be getting the benefits of Grado's exceptional quality and sound clarity in a pair of headphones that are designed for everyday travel use. They are also quite loud when compared to other models in this price range. Out of all the headphones that we've carried & tested, Grado continues to be a Lab favorite for non-dj applications (feel great, sound great), and the best part is they offer something great in every price range. That tradition is easily met here, as the iGrado's sound better than anything else in the under $50 range.