Sony MDR-RF4000K And MDR-RF810RK Closed Design Wireless Headphones
Sony Europe introduces two new wireless headphones, the MDR-RF4000K and MDR-RF810RK. Both models feature 40mm drivers for uncompromised sound, plus a convenient volume control for easy level adjustment.
Sony’s new headphones have a closed type design and is made for home entertainment use. Sony MDR-style RF4000K RF transmission of digital features with a range of up to 30 meters, 10mWx2 output and 7 hours of continuous listening using NiMH batteries. Has a fold flat design for easy storage.
Sony MDR-RF810RK can receive analog RF signals transmitted from up to 100m away. This weighing only 220g and offering 3mWx2 output power. You can expect 13 hours of listening time on a single charge of NiMH batteries.
Sony MDR-RF4000K and MDR-RF810RK wireless headphones will be released in April.[via itechnews]
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