Sony MDR-DS7100 wireless headphones

Sony has released its MDR-DS7100 wireless headphones in Japan, where this 7.1-channel device comes equipped with a 50mm driver unit and plays nice with Dolby Digital, Dolby Digital EX, DTS and DTS-ES standards when the situation calls for it. With a 13 hour battery life, it ought to be more than adequate for daily use around the home (or at the office if you’re so inclined), as long as it doesn’t venture beyond the 30 meter radius from its base unit.