I can only agree with the assessment of URSINFFM. I've tested (Sony, Sennheiser) over the years various other headphones - which are useless, although sometimes expensive. First, no sound, and secondly too large. My current KOSS (10 years old) is the third. First I've lost, the second was stolen. Currently I use a small, well-fitting transport box made of plastic (Tupper). Because of the sound and the wearability I will buy again this headset.