HG-21B. Digital Over-Ear Headphones. User Manual

HG-21B Digital Over-Ear Headphones User Manual

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 01

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 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. 9 2 10 11 12 1 3 8 4 5 6 7 Features 14 15 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. 18 17 16 13 3. The transmitter has auxiliary input connections for various audio sources like DVD player, CD player, TV set, VCR or ipod and more. 19 02 03

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 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. 04 05 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.

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. 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. 06 07

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 No sound Possible Solution 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. Distortion The audio signal input level is too low. Increase the volume of the audio source. 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. 08