Sennheiser RS 110 II breathes life into audio with its high sound quality and sleek design. Its detailed, balanced sound reproduction coupled with strong bass response makes it an ideal choice for all types of music and TV applications. This open, supra-aural, wireless RF headphone system has wireless freedom with reception through walls and ceilings. The volume and tuning controls are conveniently located on the headphone. Rediscover the world of wireless freedom with a touch of simplicity and elegance.