Avantree Technology WSHT 280 Users manual

FCC ID

： 2AITF-WSHT-280

Avantree WSHT-280

Wireless Headphone System

with Transmitter/Charging Dock

FCC ID

6
5
4

1. Power ON/OFF

2. Power Indicator

3. Volume Control

4. Optical/Coaxial Indicator

5. Power Indicator

6. Charge Indicator

7. Contact Pins

8. Contact Points

9. Audio In Select Switch

User Guide

:2AITF-WSHT-280

87

16

10. Attenuation (ATT.) Switch

11. Optical Audio Input

12. Coaxial Audio Input

13. RCA Audio Input

14. Power ON/OFF Switch

15. DC IN

16. AUX/3.5MM Headphone Jack

WSHT-280

AUDIO IN

SELECT

OPT.

COAX.

RCA

ATT.

0 dB

-8 dBTVAVR

AUDIO IN

OPTICAL

COAXIAL

R

RCA

L

POWER

OFF

ON

DC IN 5V

550mA

10

11

12

13

14

15

4.3. RCA Audio Out(Red/White ports labeled “AUDIO OUT”)

YELLOW-GREEN

AUX/3.5mm

audio cable

Fig 3-1 Charge the headphone

AUX/3.5mm to RCA

audio cable

Connect the transmitter to your TV/audio source

4

4.1. Optical Audio Out

6.35mm to 3.5mm
audio adapter

Optical audio cable

Fig 4-1 Set up the transmitter using optical audio out

2 x 1.2v NiMH

rechargeable batteries

( Installed in headphones)

Set up

Check your TV/Audio Source output options

These headphone can only use 2 x 1.2V
NiMH rechargeable batteries. Otherwise,
it may cause explosion or fire.

Now, you should be able to hear sound from headphone, if no sound：

a. Ensure the Audio In Select Switch on transmitter is set to “OPT.” position

(This is IMPORTANT).
b. Ensure your TV Speaker is set to “External Speaker”.
c. Ensure TV Audio Format is set to “PCM” or “DOLBY/DTS” is off (This is

IMPORTANT).

Speakers

Internal speakers

External speakers

Headset

Settings

Audio Format

1

Optical

OUT

AUX/3.5mm

RCA jacks

labeled

"AUDIO OUT"

9

Jack

Options

Natively

Supported?

Please refer

to Point:

4.1 4.2 N/A 4.44.3

Fig 1-1 Output options

LR

Other RCA

jacks (usually

audio IN)

Big Phone

Jack

Fig 4-2 Set TV speaker to “External Speaker”

4.2. AUX/3.5MM Audio Out

Fig 4-3 Set TV audio format to “PCM”

OPTICAL

PCM

Dolby Digital
DTS
DTS Neo 2:5

(IMPORTANT)

AUX/3.5mm

43

AUDIO OUT

R

L

RCA audio cable

Fig 4-6 Set up the transmitter using RCA audio out

Now, you should be able to hear sound from headphone, if no sound：

a. Ensure the Audio In Select Switch on transmitter is set to “RCA” position

(This is IMPORTANT).
b. Ensure use TV Red/White ports labeled “AUDIO OUT”, other Red/White ports
are incorrect (This is IMPORTANT).
c. Ensure your TV Speaker is set to “External Speaker”.

Fig 4-7 Use the right RCA ports Fig 4-8 Set TV speaker to “External Speaker”

4.4. Receiver with 6.35mm Phone Jack at Front

PHONE

3.5mm to RCA audio cable

Fig 4-9 Set up the transmitter using 6.35mm phone jack

Now, you should be able to hear sound from headphone, if no sound：

a. Ensure the Audio In Select Switch on transmitter is set to “RCA” position

(This is IMPORTANT).

Notes:

- Slide ATT. switch to “-8dB/AVR” when you use AV Receiver.

- Do NOT set volume on AV Receiver too high.

TIPS

AUDIO OUT

Speakers

Internal speakers

External speakers

Headset

6.35mm to 3.5mm
audio adapter

AUX/3.5 mm
audio cable

Adjust Volume on Headphone

Power up the transmitter/charging dock

3.5mm to RCA
audio cable

AUX/3.5 mm

audio cable

Short press “+”or “-” to raise or lower the volume. One will hear “beep” when the
volume reaches maximum.

2

Connect the transmitter/charging dock to a compatible power source using AC
adapter.
Slide ON/OFF switch to “ON” position, POWER LED indicator lights up BLUE

Charge and turn on the headphone

3

Charge headphone for 6 hours prior to the initial use:

Place the headphone on transmitter/charging dock, the charging begins
automatically, the CHARGE LED on the transmitter/charging dock lights up

YELLOW-GREEN.

When the charging is complete, the CHARGE LED on the transmitter/charging
dock will turn off.
Turn on the headphone: Press and hold for 1 second, LED indicator close
to stay SOLID RED for 1-2 seconds, then the headphone will auto connect to
the transmitter, LED indicator turn SOLID YELLOW-GREEN.

Fig 4-4 Set Set up the transmitter using AUX/3.5mm audio out

.

Now, you should be able to hear sound from headphone, if no sound：

Speakers

Internal speakers

External speakers

Headset

a. Ensure the Audio In Select Switch

on transmitter is set to “RCA”
position (This is IMPORTANT).

b. Ensure your TV speaker is set to

“Headset”.

Fig 4-5 Set TV speaker to “Headset”

After use

Power off the headphones - Press and hold the for one second. The power
indicator will turn off. Place headphones on the transmitter/charging dock to
recharge.

Headphone charging

When headphone battery is low, headphone indicator will flash RED. You will
also hear an “beep” from headphone once a minute. This means it’s time to
place headphone on the transmitter/charging dock for charging.

When headphone are properly seated on the transmitter/charging dock, the
CHARGE indicator will light up YELLOW-GREEN. This means headphones are
recharging properly. If headphone are not properly placed, the CHARGE
indicator will not light up.

Once the charging is complete, the YELLOW-GREEN CHARGE LED on
transmitter/charging dock will turn off. There is no need to remove headphone
from transmitter/charging dock.

Replacing battery

If battery need replacing, ONLY replace with 2 X 1.2V NiMH rechargeable
batteries.

: :

Better reception

HT280 work range reaches up to 100 feet, it may varies due to the environment.

• If your headphone are picking up noise or interference, move closer to the
transmitter.

• Even within the work range, there may be some “dead spots” where the RF

signal cannot be received. This issue is inherent with RF signals and does not
indicate a faulty product. Just slightly move the transmitter and the “dead spot”
can be corrected.

If no signal or low signal for 5 minutes

• When there is no signal for 5 minutes, the transmitter will automatically power

off and the transmitter POWER indicator will turn off. The transmitter will restart
once the signal resumes, POWER indicator will turn BLUE.

• If the signal input from your source is too low for 5 minutes, the transmitter may

also turn off. In this case, raise the volume of the audio source to a higher level
but without distortion. You may then need to lower the volume on your
headphone.

• If signal noise is output from your audio source, the transmitter may not turn off

even though there is no audio signal.

LED indication of the transmitter/charging dock

LED indicator Work status LEDs status

CHARGE

POWER

OPTICAL /
COAXIAL

LED indication of the headphone

Work status LED status

Power on

Connected

Recharge headphone

Recharge of headphone complete Turn off

Power on

Power off Turn off

Use opcal or coaxial input and
audio signal is detected

Use opcal or coaxial input but NO
audio signal is detected aer 5 minutes

LED close to stay SOLID

LED close to turn SOLID

RED

YELLOW-GREEN

SOLID

YELLOW-GREEN

Flashes

BLUE

then stay SOLID

Stay SOLID

Flashes

RED

for 1-2 seconds

for 4-5 seconds,

BLUE

RED

Troubleshooting

1. No sound/low sound

1) Transmitter and Headphones are not connected properly

Turn off and on both headphones and transmitter, they should auto connect
to each other, once connected successfully, LED indicator close to on
headphone will turn YELLOW-GREEN.

2) No audio signal into the transmitter
If connected using optical port:

1) Ensure your TV audio format is set to “PCM” or “DOLBY/DTS is off;

2) Change your TV audio out setting to “External Speaker”.

If connected using AUX/3.5mm audio out:

Plug your wired headphone directly to the port, check if the sound is
normal. If no sound, ensure change your TV audio out setting to “Headset”.

If connected using the RCA ports:

Plug your wired headphone to the RCA ports with RCA audio cable, check
if the sound is normal. If no sound,

1) Ensure use the Red/White ports labeled “AUDIO OUT”. Other RCA ports

are usually AUDIO IN and incorrect;

2) Change your TV audio out setting to “External Speaker”.

3) Transmitter Audio In Select Switch setting is not correct

Slide the Audio In Select Switch on transmitter to correct position:

- If using optical port, slide it to “OPT.”

- If using RCA port, slide it to “RCA”.

- If using coaxial port, slide it to “COAX.”.

4) Headphone volume is too low

Short press “+” on headphone to raise volume, when it reaches maximum
you will hear “beep”.

2. Distorted or intermittent sound

• Headphone battery is low, charge the headphone.

• Headphone are too far from the transmitter. Move closer to the transmitter or
change position of the transmitter.

• Do not place the transmitter on a metallic table.

• Volume on your audio source is too low or too high.

3. Cannot charge the headphone

• Place the headphone on the transmitter/charging dock correctly so that the

CHARGE indicator lights up YELLOW-GREEN.

• The transmitter/charging dock contact pins and/or the headphone’s contact

points need cleaning. Clean them with a dry cotton swab.

• Check that the AC adapter is connected properly to the transmitter.

WARNINGS / CAUTIONS

• Permanent hearing loss may result from long-term exposure to sound at high

volumes.

• This product contains small parts which may be a choking hazard. Not

suitable for children under age 3.

• To reduce the risk of fire or electrical shock, do NOT expose this product to

rain, liquids or moisture.

• Do NOT make unauthorized alterations to this product.

• Do NOT expose products containing batteries to excessive heat (e.g. direct

sunlight, fire, etc.).

• Do not leave a fully charged battery connected to a charger; overcharging

may shorten its life.

Declaration of Conformity CE: The product is in conformity with the essential
requirements of Article 3.1 (a) (b), 3.2 of Directive 2014/53/EU and the
essential requirements of Directive 2014/30/EU.

This device complies with part 15 of the FCC Rules. Operation is subject to
the condition that this device does not cause harmful interference (1) this
device may not cause harmful interference, and (2) this device must accept
any interference received, including interference that may cause undesired
operation. Changes or modifications not expressly approved by the party
responsible for compliance could void the user's authority to operate the
equipment. 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.
To maintain compliance with FCC’s RF Exposure guidelines, This equipment
should be installed and operated with minimum distance between 20cm the
radiator your body: Use only the supplied antenna.

Any questions? Contact:

[e-mail]

(Response Time: 1 working day)

Self-service Support:

More FAQs on support.avantree.com

•

• 100+ Step by step video Guide – youtube.com/avantree/playlists

Telephone Support (Mon-Fri):

• USA / CANADA [phone] (EN, PST 9am-5pm)

• EU / Asia telephone No. refer to http: //www.avantree.com/contact-us

Dispose of the packaging and

this product in accordance with

the latest provisions.

Z-PKQG-WSHT280-V1

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