Sony WH-RF400 Bruksanvisning
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Wireless Stereo
Headphone System
©2018 Sony Corporation   Printed in Vietnam
4-743-807-11(1)
WH-RF400
Operating Instructions
Stereo mini plug
Stereo mini cable
Headphone jack 
(Stereo mini jack)
TV, Digital music player, etc.
WARNING
To reduce the risk of fire or electric shock, do not 
expose this apparatus to rain or moisture.
To reduce the risk of fire or electric shock, do not expose 
this apparatus to dripping or splashing, and do not place 
objects filled with liquids, such as vases, on the apparatus.
Do not expose the batteries (battery pack or batteries 
installed) to excessive heat such as sunshine, fire or the 
like for a long time.
To avoid electrical shock, do not open the cabinet. Refer 
servicing to qualified personnel only.
Do not install the appliance in a confined space, such as a 
bookcase or built-in cabinet.
The AC Adaptor is not disconnected from the mains as 
long as it is connected to the AC outlet, even if the unit 
itself has been turned off.
As the main plug of AC power adaptor is used to 
disconnect the AC power adaptor from the mains, connect 
it to an easily accessible AC outlet. Should you notice an 
abnormality in it, disconnect it from the AC outlet 
immediately.
Excessive sound pressure from earphones and 
headphones can cause hearing loss.
The nameplate of transmitter is located on the bottom 
exterior.
The nameplate of the headphones is located on the back 
side of the slider.
Information
You are cautioned that any changes or modifications not 
expressly approved in this manual could void your 
authority to operate this equipment.
If you have any questions about this product:
Visit: www.sony.com/
Contact: Sony Customer Information Service Center at 
1-800-222-7669
Write: Sony Customer Information Service Center 12451 
Gateway Blvd., Fort Myers, FL 33913
Declaration of Conformity
Trade Name:SONY
Model No.:WH-RF400R
Responsible Party:Sony Electronics Inc.
Address:16535 Via Esprillo, San Diego, CA 92127 U.S.A
Telephone Number:858-942-2230
This device complies with Part 15 of the FCC Rules. 
Operation is subject to the following two conditions: (1) 
this device may not cause harmful interference, and (2) 
this device must accept any interference received, 
including interference that may cause undesired 
operation.
Note
This equipment has been tested and found to comply with 
the limits for a Class B digital device, pursuant to Part 15 of 
the FCC Rules. These limits are designed to provide 
reasonable protection against harmful interference in a 
residential installation. This equipment generates, uses 
and can radiate radio frequency energy and, if not 
installed and used in accordance with the instructions, 
may cause harmful interference to radio communications.
However, there is no guarantee that interference will not 
occur in a particular installation. If this equipment does 
cause harmful interference to radio or television reception, 
which can be determined by turning the equipment off 
and on, the user is encouraged to try to correct the 
interference by one or more of the following measures:
  – Reorient or relocate the receiving antenna.
  – Increase the separation between the equipment and 
receiver.
  – Connect the equipment into an outlet on a circuit 
different from that to which the receiver is connected.
  – Consult the dealer or an experienced radio/ TV 
technician for help.
For the customers in Canada
This device complies with Industry Canada’s licence-
exempt RSSs. Operation is subject to the following two 
conditions:
(1)This device may not cause interference; and
(2)This device must accept any interference, including 
interference that may cause undesired operation of the 
device.
For the customers in the USA and 
Canada
RECYCLING RECHARGEABLE BATTERIES
Rechargeable batteries are recyclable.
You can help preserve our environment by returning your 
used rechargeable batteries to the collection and recycling 
location nearest you.
For more information regarding recycling of rechargeable 
batteries, visit http://www.sony.com/electronics/eco/
environmental-management
Caution: Do not handle damaged or leaking rechargeable 
batteries.
Note on static electricity
Static electricity accumulated in the body may cause 
mild tingling in your ears. To reduce the effect, wear 
clothes made from natural materials, which suppress 
the generation of static electricity.
This product has magnets which may interfere with 
pacemakers, defibrillators and programmable shunt 
valves or other medical devices. Do not put this product 
close to these medical devices and the person who use 
any of these medical devices. Consult your doctor before 
using this product, if you have any concerns.
How to use
 Connect the AC adaptor. Charge the headphones.
 (Red) (Off)
Complete when indicator 
turns off.
Check the CHARGE/
RED indicator lights 
up red.
Connect the A/V component, following hookup   or   below. 
 Using the headphone jack of the A/V component
To AC 
outlet
AC adaptor
Adjust the volume. After use
Turn off the power of the headphones.
About sending RF signals
The transmitter starts sending RF signals 
automatically when it detects an audio signal from 
the connected component. Note that;
  – Noise may occur depending on the transmitter 
position and room conditions. It is recommended 
to place the transmitter in a location that 
produces the clearest sound.
  – If the transmitter is placed on a metallic table, 
you may hear noise, or the reception range may 
decrease. Do not place on a metallic table.
If no signal or low signal is 
input for about 4 minutes
When no signal is input for about 4 minutes, the 
transmitter turns off automatically*. The POWER 
indicator of the transmitter blinks for 4 minites, 
then turns off. The transmitter restarts after 
receiving an audio signal again.
The transmitter may also turn off if low signal is 
input for about 4 minutes. In this case, raise the 
volume of the connected A/V component within 
the range where the sound is not distorted, then 
lower the volume of the headphones.
 *  If signal noise is output from the connected A/V 
component, the transmitter may not turn off, 
even when no audio signal is input.
Start playback of the A/V component.Wear the headphones.
Before listening
To reduce the risk of hearing damage, first lower the volume.
Tactile dot
 Up Down
Tactile dot
 Using the audio out (L/R) jacks of the A/V component
If the sound is distorted by connecting the transmitter to the A/V component’s audio out (L/R) jacks, reconnect the transmitter to the headphone jack.
If the transmitter detects no signal or no sound, check the connection of the connected A/V components, then check the audio setting of the connected A/V components.
Charging is possible regardless of the direction of the headphones. 
Insert the supplied rechargeable battery BP-HP800-11 into the left housing of the headphones.
Observe the correct polarity when installing battery.
Rechargeable nickel-metal hydride 
battery BP-HP800-11 (supplied)
Insert the   
end first.
Checking the included 
items
RF stereo transmitter  
TMR-RF400 (1)
AC adaptor (1)
Plug adaptor (stereo mini 
plug   phono plugs) (1)
Wireless stereo 
headphones WH-RF400R 
(1)
Stereo mini cable (stereo 
mini plug), 1.5 m (1)
Rechargeable nickel-metal 
hydride battery BP-
HP800-11 (1)
Features
Thank you for purchasing the Sony WH-RF400 Wireless 
Stereo Headphone System. Before operating the unit, 
please read this manual thoroughly and retain it for future 
reference.
Some features are:
  – Wireless system that allows you to listen to a program 
free the restriction of a cable
  – Up to 45 meters (150 feet) reception range*
  – High fidelity sound reproduction
  – New mode “VOICE” for clear hearing of personal voice 
range
  – Noise reduction system to reproduce a clear sound with 
minimum transmission noise
  – Comfortable fit
  – Smooth and Comfortable Earpads
  – Long playback time (maximum 20 hours)
  – Easy recharging function with secure charging 
mechanism
  – Rechargeable Battery
  – Automatic tuning on headphones for optimum signal 
reception
  – 3 transmission channels available
  – Volume control function and sound effect function on 
the headphones
 *  Transmission distance varies depending on conditions of 
use
(Green)
L (white)
R (red)
Stereo mini plug
Audio out  
(L/R) jacks
Stereo system, Blu-ray Disc player, DVD player, TV*, etc.
* In case of no headphone jack.
 Stereo mini cable Plug adaptor (stereo  
mini plug   phono plugs)
4
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Produktspecifikationer
| Varumärke: | Sony | 
| Kategori: | Hörlurar | 
| Modell: | WH-RF400 | 
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