Headphones are as individual as loudspeakers. It is recognised within the industry that the two leading value for money brands are Sennheiser and Beyer. The added difference between speakers and headphones is the 'comfort' factor. Cheaper headphones do not have the same design quality of their more expensive counterparts. Modern headphone design has become lighter and more comfortable in the last twenty years.
Wireless headphones fall into three main categories.
Loop systems which use a loop of wire around a room or listening area and work by induction. This is rare in the domestic market and becoming rare in the professional market where they have been replaced by other methods. Better quality than a loop system but prone to interference, especially on budget models if you turn your head away from the signal. Now available giving great range and works through walls. Within the types above the higher priced models offer higher sound quality.