Everyone knows that German firm Sennheiser makes great headphones – that look and sound great too. I swear by my pair of PX100s for listening to my iPod. This pair though look much more serious and come at a much more serious price too (a cool £140). A foldable pair they are intended as professional monitoring headphones for audio professionals such as sound engineers and musicians. Sennheiser claims they offer high sound pressure level and extended frequency response. They are provided with zipped carrying case.