Let me represent the Sennheiser PXC 550 review having had a chance to test it on my own. These are decent quality wireless headphones with a comfortable over ear design. Their stable fit and wireless option makes them a great device to carry out, use at the gym etc. A sufficient sound quality will suit both casual listeners and professionals. The above-average model is the product of a famous German trade mark founded in 1945 and having a great experience in audio techniques.