Sony MDR-RF4000K headphones let you listen without distraction

If you to watch movies or listen to music without ambient noise, but don't want to fork out huge amounts of hard-earned cash on expensive loudspeakers (only to be told to turn them down so the rest of the household can talk to each other), wireless headphones make a great solution. Sony's latest offering - the MDR-RF4000K digital cordless headphones - include a unique new storage and charging dock and an impressive wireless range of 30m (100ft).

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