The new Sony MDR-DS7000 wireless 7.1 channel surround sound headphones will be available worldwide. The new MDR-DS7000 headphones offer wireless surround sound via 2.4Ghz band and adopt Dolby digital logic. The device is compatible with Sony PlayStation 3 and has a game mode setting for video gamers to experience the true sound field from the game. Its 40mm speakers provides a frequency bandwidth of 6Hz to 25kHz. The Sony MDR-DS7000 retails for $319.