HG-31B. Digital Over-Ear Headphones. User Manual

HG-31B Digital Over-Ear Headphones User Manual

Congratulations! Thank you for choosing AudioMX HG-31B Digital Over- Ear Headphones. To get familiar with this product, please read this manual carefully before use. We hope you will enjoy the pleasure and convenience the headphones bring you. Introduction The AudioMX HG-31B 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 AC / DC adapter 2 NiMH AAA size 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 15Hz ~ 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 992 g Package Size 23 cm 15.5 cm 29 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. 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 different head sizes; well-padded headphone cushions provide comfortable cover for ears. 18 16 1 17 13 15 2 7 14 12 11 10 3 4 5 6 8 9 02 03

Product Profile Transmitter 1. Power / Signal / Charge LED indicator 2. Charging pins 3. Attenuation select switch 4. RCA Audio In socket 5. Power On / Off switch 6. DC In socket Headphones 7. Charging contacts 8. Volume up ( + ) 9. Volume down (-) 10. Direct line in 11. Power / Signal LED indicator 12. Power button Accessories 13. RCA to 3.5 mm cable 14. 3.5 mm to 3.5 mm Direct Line-in cable 15. AC / DC adapter 16. NiMH AAA size batteries for headphones 17. 3.5 mm to 6.3 mm jack adaptor 18. 3.5 mm to RCA adapter (Short Y shaped cable) Installation Transmitter installation 1. Connect the supplied AC / DC power adapter to an electrical wall outlet. 2. Plug the AC / DC power adaptor in the DC jack located on the rear of the transmitter. Slide the power switch to ON. The triangle shape Power / Signal / Charge LED indicator on the transmitter starts to flash in orange for about 15 seconds and 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 tracks 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. (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.) 4. For TV / DVD / VCD / VCR / Hi-Fi, switch to -8dB. For portable devices like CD / MP3 / VCD / DVD players, and ipod, switch to 0 db. 5. The LED on the transmitter lights up in orange steadily when the transmitter receives the audio signal. It changes to blue if the transmitter does not connect to or receive any audio signal from the audio source. Notes: The transmitter must be used with the AC / DC adaptor supplied in the package. 04 05

Operation Transmitter Rear View RCA Cable Music Player Using the transmitter and the headphones 1. Turn on the audio source which the transmitter is connected to. The LED indicator on the transmitter will light in orange when the transmitter receives the audio signal. DC 5V 550mA Power Adaptor Mains Socket Headphones battery installation 1. To install or replace the rechargeable batteries, carefully pull out the headphones cushion (Left) and take it off. 2. Insert the 2 pieces of AAA size rechargeable batteries (supplied in the package) into the battery compartment of headphone cabinet (Left). Make sure the batteries are placed at the right polarity. 3. Reinstall the cushion to the headphones after the batteries are inserted. 2. Turn on the headphones by pressing the power button for about 1 second. The LED indicator on the headphones will light up in red. It changes to green when the audio signal link between the transmitter and headphones is established. 3. Place the headphones on your head. To obtain the desired sound level, adjust the volume control on the headphones. 4. If interference or poor signal reception occurs, the headphones will mute and the green LED will change to red. The headphones will automatically search for another channel to run. The LED indicator on the headphones will light up in green again when the re-link between the transmitter and headphones is successful. 5. When the battery power of the headphones is too low, the LED indicator on the headphones will blink in red. There will be beeping sound from the headphones every minute. After two continuous beeping sounds, the headphones will automatically turn Off. 6. The headphones can be used as regular wired headphones by connecting your audio source to the headphones jack directly. 06 07

Notes: 1. For power saving and transmitter protection, the transmitter will automatically switch to standby mode if there is no audio signal source for approximately 5 minutes (LED on the transmitter will change to blue). If the audio source signal returns, the transmitter will automatically switch on (LED on the transmitter will change to orange). Then, power on the headphones again to listen to music. 2. 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 on the top of the transmitter. Make sure the charging pins on the transmitter and charging contacts of the headphones are matched. 3. The indicator on the transmitter will light in purple during charging process and change to blue 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. According to the capacity of the rechargeable battery included, the battery charging process will take approximately 5 hours. 2. Do not charge the batteries over 12 hours. Overcharging may lead to damage of batteries. 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 transmitter or the headphones on your own. It may cause damage. 6. Excessive sound pressure from headphones can cause hearing loss. Trouble-shooting Problem No sound Possible Solution Make sure the AC / DC adaptor is fully inserted into the AC outlet and the power connection input on the transmitter. Make sure the headphones are switched on. Headphones battery charging level maybe 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. 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. Distortion The audio signal input level is too Increase the volume of the audio source. Ensure the volume level of the headphones is set to an appropriate level. 08 09

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. 10 11