You can take it with you ndash versatile and vibrant the new hd 4 series offers you the complete sennheiser quality package in a range of durable closed back over ear headsets that fulfill your everyday aural needs add the legendary sennheiser sound to your everyday routine and let your life be powered by music sennheiser hd 420s this robust but elegant over ear headset is the right choice for all listeners going for immaculate sound comprehensive features a