The RS120 is an open, wireless RF headphone system. Its transparent and well-balanced sound with great bass response makes this system an ideal choice for all types of music and TV applications. Laid-Back Convenience Its innovative 'easy recharge' function offers the ultimate in convenience when it comes to charging and storing your wireless headphones. Enjoy total freedom of sound, stylish design and maximum comfort over a 100 metre range. Built On Decades Of Pedigree Dr Fritz Sennheiser formed his company over 50 years ago, and this family-owned business has expanded into an international organisation that is recognised as one of the world's leading manufacturers of electro-acoustic solutions Professional users of Sennheiser products include theatres, broadcasters, airlines, the MOD, tourist attractions and heritage sites, the hard-of-hearing and recording studios.