This is a highly rated pair of headphones. Go on to Cardas’s website to read more about their “10.85mm Ultra Linear, Contour Field, Dual Magnet Driver”. If you want the full scale sound of over ear headphones but don’t like their weight and size and the discomfort (for some users), the Cardas A8 is by far the best alternative for in-ear headphones.
The pair you see here was a former display set. Only taken out for the pics you see here and a quick test.