Sony MDR-RF4000K User manual

MDR-RF4000K Wireless digital RF headphones
Dierences in details
40mm drivers deliver deeper bass, lower distortion and wider dynamic range.
Stay comfortable as long as you listen
A wide, self-adjusting headband distributes the headphone's weight over a wide area, reducing pressure and
improving comfort.
Listen from a distance
Radio Frequency (RF) transmission sends signals from the transmitter to the headphones, allowing high delity
sound reproduction. You can enjoy the accompanying reception range – up to 100 feet – even when you move
outside the line of sight of the transmission.
Battery life for extended viewing
The supplied rechargeable NiMH battery lets you enjoy up to eight hours of continuous on a single charge1. The
slim, folding design ts snugly into the charger (included). Substituting a single AAA battery for the rechargeable
NiMH pack provides 10 hours of power.
Specications
Audio
Distortion 1% or less (1 kHz)
Driver Unit 40 mm
Eective Range Approximately 100 feet (30 m)
Frequency Response 10 - 22,000Hz
Transmitter 2.404 GHz - 2.476 GHz, GFSK
Tuning Auto Tuningon headphones
Volume Control Yes (Rotary)
General
Design Over-the-head, Home-Surround Sound
Diaphragm PET
Headband Wide, Self-Adjusting
Magnet Neomydium
Power On/O Power turns ON when headphones are worn; Red LED illuminates
Type of Use Home
Hardware
Communication Wireless Digital 2.4GHz Radio Frequency
Headphone Type Closed, Dynamic
Inputs and Outputs
Audio In Analog Phono Input (left/right), Analog Stereo Input mini jack (x1)
Power
Battery Charging (Approx) 15 hours
Battery Indicator Power-on LED indicator
Battery Life (Approx) 8 hours

1. Actual battery life may vary based on product settings, usage patterns and environmental conditions.
© 2010 Sony Electronics Inc. All rights reserved. Reproduction in whole or in part without written permission is prohibited. Sony is a trademark of Sony. Features and specications are subject to change without notice.
Non-metric weights and measures are approximate and may vary.
Updated: June 28, 2011
Battery Type AAA Ni-MH x 2
Input Power AC Power Adaptor (5.2V, 800mA)
Input Voltage DC 5.2 V (from supplied AC power adaptor)
Power Requirements Rechargeable nickel-metal hydride battery (supplied) or commercially available (size AAA) alkaline batteries
Weights and Measurements
Cord Length (Approx.) 39 3/8 in. (1.0 m) Stereo connecting cable
Dimensions (Approx.) Transmitter: 9 1/4 x 3 x 4 3/4 in. (246 x 75 x 120 mm)
Weight (Approx.) Approximately 15.2 oz. (430 grams) Including suppliied battery
Accessories
Supplied Accessories
AC power adaptor (5.2 V) (1)
Rechargeable nickel-metal hydride battery
BP-HP550-11 (550 mAh) (1)
Connecting cable (stereo mini plug - pin plug
× 2), 1 m (39 3/8 in) (1)
Unimatch plug adaptor (stereo mini jack - stereo phone plug) (1)
Stand (1)
Card warranty (1)
Operating Instructions (this manual) (1)
Optional Accessories
Optional Accessories Optical digital connecting cable POC-15AB
(1.5 m, 59 1/8 in) (mini-plug - rectangular plug)