Sony announce MDR-RF4000K and MDR-RF810RK wireless headphone sets - Tech Digest
Sony have today announced the release of two new sets of wireless headphones, the MDR-RF4000K and the MDR-RF810RK. The MDR-RF4000K sets have been designed to complement the look of Sony's new "Monolithic" range of Bravia TVs. They feature a small...
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