JBL WR2.4 Quick Start Manual

IntroductIon

These 2.4 GHz digital wireless 

headphones use the latest digital 

wireless technology, so you can enjoy 

crystal-clear stereo music and TV 

sound anywhere inside your home. 

Simply connect the transmitter to your 

portable device, TV set or other audio 

source. Without complicated wiring 

and installation, the system enables 

you to enjoy thrilling, lifelike sound in 

minutes. 

Please take a few minutes 

to carefully read the instructions 

below before operating your 

headphones.

coMPonEnt  

PArt LISt (FIG. A)

HeadPHone ReceiveR

1.  Signal link LED

2.  Volume Up (+) and Down (-) Control 

3.  Power LED

4.  Power button

5.  Charging contacts

TRansmiTTeR

6.  Power/Signal LED

7.  Charge LED

8.  Charging pins

9.  Attenuation (ATT) select switch  

(0dB and -8dB)

10.  RCA Audio In sockets

11.  DC IN socket

accessoRies

12.  Audio cable

13.  NMH AAA size batteries for 

Headphone (2 pieces)

14.  AC/DC adaptor

connEctIonS (FIG. B)

TRansmiTTeR

1.  Connect the supplied AC/DC power 

adaptor to an AC wall outlet.

2.  Connect the AC/DC power adaptor 

cable to the DC jack located on 

the rear of the transmitter. The red 

Power/Audio Signal LED starts to 

flash for approximately 6 seconds.

3.  Connect the supplied audio cable 

to the transmitter’s RCA Audio In 

sockets. Connect the other end of 

the cable to the audio output jack 

of your portable device, TV or other 

audio source. If your audio source 

does not have a 3.5mm output 

connector you may need to acquire 

another cable (not included).

4.  For TV/VCR/DVD/Hi-Fi sources, set 

the ATT switch to -8dB. For portable 

device sources, set the ATT switch 

to 0dB

Turn on and begin playing your audio 

source; the transmitter will automatically 

switch on and the red Power/Signal 

LED will light red when it receives an 

audio signal.

HeadPHone RecieveR

1.  To install or replace the rechargeable 

batteries, carefully rotate the 

Right-

Hand side (R)  

Ear Pad counter-clockwise and 

remove it. (Fig. C)

2.  Insert the two supplied AAA 

size rechargeable batteries into 

the battery compartment of the 

headphone housing, observing the 

correct polarity.

3.  After inserting the batteries, restore 

the Ear Pad to the headphone 

housing, according to the indication 

of the arrow marking.

oPErAtIon

TRansmiTTeR

Turn on the audio source to which the 

transmitter is connected. 

The Power 

/ signal Led (6) on the transmitter 

will light red when it receives an audio 

signal.

HeadPHone ReceiveR

1.  Turn on the headphones by 

pressing the 

Power button (4) for 

approximately 1 second. The red 

Power Led (3) will light up, and the 

green Led (1) will be flashing. When 

the signal link between transmitter 

and receiver is established, the 

green Led (1) will light up steadily.

2.  Place the headphones on your head. 

To obtain the desired sound level, 

adjust the 

volume control (2) on the 

headphones.

3.  If interference or poor signal 

reception occurs when out of range 

of the transmitter, the headphones 

will mute and the 

green Led (1) 

will turn off. Move closer to the 

transmitter.

4.  When the headphone batteries are 

at low level, the 

Power Red Led 

(3) blinks. There will be a beeping 

sound in each minute for the last 5 

minutes. After that, the headphones 

will switch Off automatically.

5.  To charge the headphone batteries, 

turn the headphones OFF by pressing 

the 

Power button (4) for about 1 

second. Place the headphones on 

the transmitter’s charging cradle. 

The charging process begins 

automatically, and the 

charge green 

Led (7) will blink when the charging 

contacts of the transmitter (8) 

and

 headphones (5) make proper 

contact. When the charging process 

is completed, the 

charge green 

Led (7) will light up steadily.

noTe: For the initial use, please 

charge the batteries for 7 hours. 

To ensure a long service life, fully 

charge the batteries before using the 

headphone for the first time.  If the 

headphones are not in use, please 

store them on the transmitter’s 

charging cradle. (Fig. d)

imPoRTanT

1.  Switching Off

a) To protect the transmitter and 

conserve power, the transmitter 

will switch off automatically if 

there is no audio source signal 

for approximately 3 minutes. If 

the audio source signal returns, 

the transmitter will automatically 

switch on. To listen, press the 

headphones’ Power button again 

for approximately 1 second.

b) The headphones will automatically 

switch off if they receive no signal 

from the transmitter for 3 minutes.

2.  Make sure the headphones are 

turned off when charging is in 

process.

3.  Use only the rechargeable AAA 

batteries supplied with the 

headphones. When the headphones 

are not in use, turn the headphones 

OFF.

4.  Ensure the charging socket located 

on the right headphone housing 

connects securely with the charging 

prongs on the transmitter cradle. 

According to the capacity of the 

included rechargeable batteries, the 

battery charging process will take 

approximately 5 to 7 hours.

This device must be used with the AC/

DC adaptor supplied in the package.

WArnInG

•  Never attempt to recharge 

conventional dry cell batteries.

•  Batteries (battery pack or batteries 

installed) shall not be exposed to 

excessive heat such as sunshine, fire 

or the like.

•  Never use another type of battery or 

non-rechargeable batteries to replace 

the supplied rechargeable (LR03/

AAA) batteries

•  Excessive sound pressure from 

earphones and headphones can 

cause hearing loss.

•  Before charging the headphones 

batteries, always make sure that the 

batteries in the headphones are the 

rechargeable types.

•  Dispose of spent dry or rechargeable 

batteries conforming to local waste 

disposable rules. Never throw 

batteries into fire.

•  Operate the transmitter with the 

supplied 5V DC, 550mA AC/DC 

adapter only. Check that the AC 

voltage stated on the AC/DC adapter 

is the same as that available in your 

country. Using the transmitter with a 

different AC/DC adapter makes the 

warranty void.

•  Always switch the headphones OFF 

after use.

•  Never try to open the headphone or 

transmitter case. Refer servicing to 

qualified service personnel only.

•  Never use alcohol, petroleum-based 

cleansers, or paint thinners to clean 

the headphones or transmitter.

•  Use the equipment for the 

applications described in this manual 

only. JBL cannot accept any liability 

for damages resulting from improper 

handling or misuse.

•  Do not subject this equipment to 

any environments where drops or 

splashes can make contact with 

the equipment and make sure that 

no objects filled with water, such as 

vases, are placed on the equipment.

•  This equipment is fully disconnected 

from the mains power by pulling the 

mains plug out of the wall outlet. The 

power disconnect procedure must 

be easily accessible. 

•  The mains plug on the mains cable 

must always be ready to use.

JBL

®

 Wr2.4

Wireless Rechargable Headphones

quIck-StArt GuIdE