A decent pair of phones

I really don’t notice any real difference between the PX 100 and PX 200, the main difference seems to be what others hear! The PX200 uses a closed design (rather than the open design of the PX100) so less sound escapes (and, I suppose, enters-I haven’t noticed). For reviews see http://alatest.com/reviews/headphone-reviews/sennheiser-px-100-px-series-open-folding-mini-head/po3-12789,74/ and http://alatest.com/reviews/headphone-reviews/sennheiser-px200-headphones/po3-1867,74/#partner:50512