AudioMX HG-21B User manual

Brand: AudioMX

Model: HG-21B

Category: Headphones

Type: User manual

AudioMX HG-21B allows you to enjoy crystal clear stereo music and TV sound anywhere inside your home. Simply connect the transmitter to a desired audio source: DVD player, CD player, TV set, VCR, Hi-Fi system, or iPod. Without complicated wiring and installation, the system lets you enjoy thrilling, lifelike sound in minutes. Enjoy wireless freedom with the rechargeable battery that powers the headphones, giving you the ability to move around your home without being tethered to the transmitter. When not in use, simply place the headphones on the transmitter charging stand for easy charging. Use the headphones wirelessly with the transmitter or as regular wired headphones by connecting them to an audio source using the included cables.

User Manual

HG-21B

Digital Over-Ear Headphones

Congratulations! Thank you for choosing AudioMX HG-21B Digital Over-

Ear Headphones. To get familiar with this product, please read this manual

carefully before using. We hope you will enjoy the pleasure and convenience

the headphones bring you.

Introduction

The AudioMX HG-21B Digital Over-Ear Headphones use the latest digital wireless

technology that enables you to enjoy crystal clear stereo music and TV sound anywhere

inside your home. Simply connect the transmitter to a desired audio source: DVD player, CD

player, TV set, VCR, Hi-Fi system, or iPod. Without complicated wiring and installation, the

system lets you enjoy thrilling, lifelike sound in minutes.

Package Contents

1 × Headphones (digital receiver)

1 × Transmitter charging stand

1 × RCA to 3.5 mm cable

1 × 3.5 mm to RCA adapter (Short “Y” shaped cable)

1 × 3.5 mm to 3.5 mm Direct Line-in cable

1 × Mains adapter

2 × Micro AAA / HR03 batteries for headphones

1 × 3.5 mm to 6.3 mm jack adaptor

1 × User manual

02 03

4. Chargeable design: place the headphones on the transmitter charging stand to charge

when not in use.

5. Dual usage methods: use wirelessly with the help of the transmitter or use as regular

wired headphones by connecting them to an audio source.

6. Ergonomic headband design allows it to snugly fit various head sizes; well-padded

headphones cushions provide comfortable cover.

3 8

Technical Specifications

Transmission Mode GFSK

Carrier Frequency 2.4 GHz

Transmitter Operating Voltage DC 5V 550 mA

Receiver Operating Voltage 2 × 1.2 V AAA

Signal-to-Noise Ration ≥ 85 dB

Frequency Response 15 Hz ~ 22 KHz

Distortion < 0.5%

Transmission Distance 30 m

THD ≤ 0.3%

Channel Separation ≥75 dB

Unit Diameter 40 mm

Unit Resistance 24 Ω

Sensitivity 105 dB

Output Power 7 mW

Gross Weight 1050 g

Package Size 12 cm × 22.5 cm × 31.5 cm

Features

1. 2.4 GHz digital wireless technology with strong anti-interference performance enables

you to enjoy crystal stereo music and TV sound anywhere inside your home.

2. 31-channel frequency hopping system automatically finds the strongest signal.

3. The transmitter has auxiliary input connections for various audio sources like DVD player,

CD player, TV set, VCR or iPod and more.

04 05

18. Micro AAA / HR03 batteries for headphones

19. 3.5 mm to RCA adapter (Short “Y” shaped cable)

Installation

Transmitter installation

1. Connect the supplied mains adapter into the mains socket.

2. Plug the mains adaptor into the DC in jack located on the rear of the transmitter. Slide the

power switch to “ON”. The LED indicator on the transmitter starts to flash in blue for about

5 seconds then light up steadily.

3. Connect the transmitter to an audio source with the included RCA to 3.5 mm cable. The

rear of the transmitter has audio sockets with Left and Right for connecting the RCA

cable to the audio output jack of TV, DVD, VCD, VCR, Hi-Fi, CD / MP3 / VCD / DVD players,

iPod, MP3 and more audio sources. Be sure to match red to red and white to white.

4. For TV / DVD / VCD / VCR / Hi-Fi, switch to “-8 dB”. For portable devices like CD / MP3 /

VCD / DVD players, and iPod, switch to “0 dB”.

Notes:

1. Use only the supplied mains adapter. The mains adapter may only be used in dry rooms.

2. If the desired audio source only has a 6.3 mm jack, connect the RCA audio cable with the

supplied 3.5 mm to 6.3 mm jack adaptor first.

Product Profile

Transmitter

1. Charging LED (CHARGE)

2. Operating LED (POWER)

3. Charging pins

4. Signal strength setting

5. RCA audio in jack

6. On / Off switch

7. DC in jack

Headphones

8. Charging contacts

9. Battery compartment

10. Volume + / Volume-

11. Operating signal LED

12. Power button

13. Direct line-in

Accessories

14. RCA to 3.5 mm cable

15. 3.5 mm to 3.5 mm Direct Line-in cable

16. Mains adapter

17. 3.5 mm to 6.3 mm jack adaptor

06 07

5. The headphones can be used as regular wired headphones by connecting your audio

source to the headphones directly.

Notes:

1. If the transmitter does not receive any audio signal for 5 minutes, the operating LED of the

transmitter turns off.

2. The LED indicator on the headphones will light up red if no transmitter is within range.

3. The headphones will automatically switch off if there is no signal from the transmitter for 5

minutes.

Charging the headphones battery

1. Turn off the headphones by pressing the power button before charging. This may avoid

battery damage.

2. Place the headphones onto the cradle of the transmitter. Make sure the charging pins on

the transmitter and charging contacts of the headphones are matched.

3. The charging LED on the transmitter will light in green during charging and go out when

charging is completed.

Notes

1. To ensure a longer service life, fully charge the batteries for 7 hours before using the headphones

for the first time.

2. When the charging station is switched off, the batteries will not be charged.

Cautions

1. Never attempt to recharge conventional dry cells (batteries).

2. Do no expose the batteries to excessive heat such as direct sunshine, fire or the like.

Headphones battery installation

1. Hold the rear of the headphones and gently screw the right ear cushion in an

anticlockwise direction.

2. Insert the supplied two micro AAA / HR03, 1.2V, batteries into the battery compartment

with correct polarity.

3. Place the ear cushion back on the headphones by screwing it in a clockwise direction.

Operation

Using the transmitter and headphones

1. Turn on the audio source which the transmitter is connected to.

2. Turn on the headphones by pressing the power button on the left ear piece for about

1 second. The LED indicator on the headphones will light up in red until a remote

connection is established with the transmitter. The LED changes to green permanently

when a connection has been established and the audio signal is transmitted.

3. Place the headphones on your head. To obtain the desired sound level, adjust the volume

control on the headphones. An acoustic signal will alert you to a high volume setting.

4. When the battery power of the headphones becomes too low, the LED indicator on

the headphones changes to red. A warning tone can be heard every minute. After two

continuous alert tones, the headphones will automatically turn off. You will need to

recharge the headphones before you can use them again.

3. Store the transmitter and headphones in a dry and clean place. Humidity or dust may

cause damage to the inside components.

4. Never use another type of battery or non-rechargeable batteries to replace the

rechargeable batteries supplied.

5. Do not disassemble the transmitter or the headphones on your own. It may cause

damage.

6. Excessive sound pressure from earphones and headphones can cause hearing loss.

Trouble-shooting

Problem Possible Solution

No sound Make sure the mains adaptor is fully inserted into the mains socket and

connected to the power connection input on the transmitter

Make sure the headphones are switched on.

Headphones battery charging level may be too low.

Recharge the batteries fully.

Make sure the TV or the connected audio device is switched On.

The volume of the 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 Make sure the volume level of the headphones is set to an appropriate

level.

The headphones are too far from the transmitter. Move it closer.

The audio signal input level is too low.

Increase the volume of the audio source.

Unit04, 7/F Bright Way Tower, No, 33 Mong Kok Road,

Kowloon, Hong Kong

Email: [email protected]

AudioMX is a Trademark owned by Claybox Limited

AudioMX HG-21B User manual

Brand: AudioMX

Model: HG-21B

Category: Headphones

Type: User manual

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AudioMX HG-21B User manual

AudioMX HG-21B User manual

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