All stock codes associated to this product
MDRRF4000K, 14MDRRF4000K
RF4000K Digital RF wireless headphones
MDR-RF4000K
Digital sound quality headphones with smart store & charge dock
40mm driver, closed type, smart store & charge dock, 30m range, AC adaptor, rechargeable batteries
This product is a previous model and could be no longer available at your local dealer.
- Listen at high volume without waking anyone
- Enjoy total freedom with 30m range
- Stylish store and charge dock fits in the TV rack
Features MDR-RF4000K
- 40mm driver - Hi-Fi quality digital sound for home, with powerful 40mm Neodymium driver unit and long stroke diaphragm for deep clear bass
- Digital RF - Digital Radio Frequency transmission technology with no interference and 30m listening range
- Cordless style - Closed type headphones with wireless connectivity and built-in volume control for the ultimate freedom to listen around the house
- Easy set up - Tune and go: Automatic tuning and on/off switch, plus comes with all the cables you need to plug into your TV
- Smart charging - Stylish new charge and store dock matches any TV design: Headphones swivel flat and slide into case for easy recharging
- Lightweight and long-lasting comfort - Weighing just 220g and designed for long-lasting wearing comfort with parallel-link self-adjusting headband plus padded circum-aural ear cushions
- Long battery life - Battery playback time of up to 28 hrs with AAA Alkaline battery - 13 hrs with rechargeable NihM battery
Technical specifications MDR-RF4000K
General Data
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Open Air Type
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NO
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Closed Type
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YES
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Dynamic Type
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YES
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Wearing style
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Circum aural
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Driver unit (mm)
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40
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Tuning
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Automatic
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Frequency response (Hz)
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12 - 22,000
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Magnet
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Ferrite
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Power ON indicator
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YES
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ON/OFF function
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Automatic
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Mute function
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Automatic
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Diaphragm
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Long stroke
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Volume control
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YES
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Battery number
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2
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Battery type - normal
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AAA
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Battery type - rechargeable
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NiMH
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Battery life - normal (h)
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10
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Battery life - rechargeable battery (h)
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7
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Recharging time - from 0 to full (h)
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16
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Weight (g)
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300
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Transmitter
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Transmission type
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RF
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Signal range (m)
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30
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Charging stand type
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Direct
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Battery charge method
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Automatic
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Battery charge indication
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YES
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Power ON indicator
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YES
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Distortion rate (% at 1 kHz)
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lower than 1
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Transmitter frequency range (Hz)
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10 - 24,000
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Transmitter power ON/OFF
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Automatic
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Available channels
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2
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Stereo mini jack input
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YES
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Weight (g)
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400
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Supplied accessories
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AC adaptor
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YES
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Rechargeable battery
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YES
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Connecting cords
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YES
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Plug adaptor
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YES (unimatch plug cord to phono)
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Dimensions
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Width (mm)
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245
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Height (mm)
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65
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Depth (mm)
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128
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