DH1000
2.4GHz Digital Headphone
User Manual
Please read before using this headphone.
INTRODUCTION
This 2.4GHz Digital Wireless Headphone uses latest digital wireless technology that enables you to
enjoy crystal sound stereo music and TV sound anywhere inside your home. Simply connect the
transmitter to a desired audio source: DVD player, TV set, Hi-Fi system, MP3, iPo d, or Smartphone.
Without complicated wiring and installation, the system enables you to enjoy thrilling, lifelike sound in
minutes.
FEATURES
1. 2.4GHz Digital UHF Technology
2. 31-Channel Frequency Hopping System
3. Smart Volume Memory preset
4. Electronic Volume Control
5. Low Power Indicator Alert
6. Top Charge Mechanism
7. Auto On/Off (when without signal)
8. Muting
9. Speed charging mechanism
10. Direct Audio Line-In
COMPONENT PART LIST
Transmitter
1. Charge LED Indicator
2. Power LED Indicator
3. Charging pins
4. Attenuation select switch
5. RCA Audio In socket
6. Power on/off switch
7. DC IN socket
Headphone Receiver
8. Charging contacts
9. Battery Compartment (inside Right Hand Side of the Ear Pad)
10. Volume Control
11. Power/Signal LED Indicator
12. Power ON/OFF
13. Direct Line-In Jack
Accessories
13. RCA cable
14. 3.5mm ~ 3.5mm Direct Line-In Cable
15. AC/DC adaptor
16. NiMH AAA size batteries for Headphone (2 pieces)
17. 3.5mm ~ 6.3mm
stereo plug
INSTALLATION
TRANSMITTER
1. Plug the AC/DC power adaptor in the DC jack at the rear of the transmitter. Connect the
supplied AC/DC power adaptor to an electrical wall outlet.
2. The rear of the transmitter has audio sockets with Left and Right for connecting the Audio Cable to
the audio output jack of TV, DVD, iPod, MP3, or Smartphone.
3 For TV/DVD/Hi-Fi, switch to “-8dB”. For portable devices, like CD/MP3, and iPod, switch to “0dB”.
HEADPHONE RECEIVER
1. To install AAA Rechargeable Batteries or replace Ear Pad, carefully rotate the Ear Pad Holder and
take it away from the Headphone Cabinet.
2. Insert 2 pieces of AAA size rechargeable batteries (supplied in the package) into the Battery
Compartment of Headphone Cabinet (Right Hand Side ONLY). Make sure the batteries are
placed with the right polarity.
3. Restore Ear Pad to the Headphone Cabinet after the batteries are inserted.
OPERA TION
TRANSMITTER
1. Turn on the audio source (TV or audio component) to which the transmitter is connected.
2. Slide the power switch located on the rear of the Transmitter to “ON”. The Power LED starts to
flash in BLUE for around 8 to 9 seconds and then remains to glow steadily.
HEADPHONE RECEIVER
1. Turn on the headphone by pressing the Power button for about 2 seconds. The LED will light up
in RED, and then change to GREEN when Audio Signal link between Transmitter and Headphone
Receiver is established. If no Audio Signal is detected, this LED will glow in RED constantly.
2. Adjust the size of the Headband, place the Headphone on your head. To obtain the desired sound
level, adjust the Volume Control on the Headphone.
3. If interference or poor signal reception occurs, the headphone will be muted and the LED will
change to RED, searching for another channel will be run automatically.
4. When the batteries of Headphone are at low level, the LED
will blinks in RED. There will be
beeping sound from the headphone in every minute to indicate the last 5 minutes of working,. A
beep sound in each of the first 4 minutes, and 2 beep sound in the last minutes and then it will
automatically switch off.
5. To charge the Batteries in the Headphone, turn OFF the Headphone by pressing the Power button
for about 2 seconds. Place the Headphone on the Transmitter. The charging process begins
automatically, and the CHARGE LED on the transmitter will light in GREEN when the charging
contacts of transmitter and headphone are matched successfully. When the charging process is
completed, the GREEN LED will be OFF.
Note : For the initial use, please charge the batteries for 7 hours. If the headphone is not
in use, please place it back on the transmitter.
6. This Headphone can be used as a regular Wired Headphone by connecting your Audio Source
with the Line-In Cable to the Headphone Jack shown below.
IMPORTANT
1. Switching Off
a) For protection of the Transmitter and power saving, the Transmitter will be switched to
Stand-by Mode automatically if there is no Audio Signal for approximately 5 minutes, LED
will be OFF. If the Audio Signal returns, the Transmitter will be automatically switched On
with LED glows in BLUE. Switch on the Headphone again to listen the music.
b) The Headphone will be switched Off automatically if there is no signal from the Transmitter
for about 5 minutes.
2. Make sure the Headphone is turned OFF when charging is in process.
3. Use only the included Rechargeable AAA Batteries. When the Headphone is not in use, turn the
Headphone OFF.
4. To ensure a long service life, fully charge the Batteries before using the Headphone for the first
time. According to the Capacity of the Rechargeable Battery included, the Battery charging
process will take approximately 5 hours.
This device must be used with the AC/DC adaptor supplied in the package.
WARNING
• Never attempt to recharge conventional dry cells.
• 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 rechargeable
(LR03/AAA) batteries supplied. When the headphones are not in use, switch it OFF to avoid
damaging the batteries.
• Prolonged exposure to Excessive sound pressure from earphones and headphones may cause
hearing loss.
TROUBLE SHOOTING
No Sound
- Ensure the AC/DC adaptor is fully inserted into the AC outlet and the power connection input on
the Transmitter.
- Ensure the the Power Button at the back of Transmitter is switched to ON.
- Ensure the headphone is switched ON.
- Headphone battery charge level may be too low, recharge the batteries fully.
- Ensure the TV or the connected audio device is switched ON.
- The volume of headphone may be too low, adjust the volume to a moderate level.
- The audio signal input level is too low. Increase the volume of the audio source.
Distortion
- Ensure the volume level of headphone is set to an approximate level.
- The headphone is too far from the transmitter, move it closer.
- The audio signal input level is too low. Increase the volume of the audio source.
TECHNICAL SPECIFICATIONS
Transmission Mode : UHF Stereo
Carrier Frequency : 2.4GHz Digital
Operation Voltage : Transmitter, DC 5V 550mA
Headphone, 2 x AAA size Rechargeable NiMH batteries (included)
Frequency Response : 30Hz~ 20KHz
Distortion : 0.5%
S/N Ratio : 70 dB
Operation Distance : Up to 30 meters
FCC INFORMATION
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.
Caution: Any changes or modifications not expressly approved by the party responsible for compliance
could void the user's authority to operate this equipment.
FCC Radiation Exposure Statement
This equipment complies with FCC RF radiation exposure limits set forth for an uncontrolled
environment. This equipment should be installed and operated with a minimum distance of 20
centimeters between the radiator and your body.
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