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WARNING: 

Never attempt to recharge conventional dry cells. 

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, 

move the switch to the OFF position to avoid damaging the batteries. 

The batteries must always be fully charged before use. An initial

 

24 hour charge is 

required to guarantee an acceptable service life for the rechargeable batteries. 

Always ensure that the headphones are switched to the Off position while the 

batteries are charging. 

 

IMPORTANT: 

This unit should be operated with rechargeable batteries only. When replacing the 

batteries or when disposing of the unit, always comply with applicable laws 

relating to the disposal of batteries. Please place them in a proper disposal container 

to ensure that they are eliminated safely and in an environmentally-friendly way. 

Thank you. 

 

 

 

 

 

 

 

 

 

7

REPLACING BATTERIES 

Rechargeable batteries have a long service life. If it is however necessary to replace 

them, proceed as described below: 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Only use rechargeable batteries of the type specified under the “Technical 

specifications” heading. 

The rechargeable batteries supplied with the headphones must absolutely not be 

taken apart, disposed of in an open fire or short circuited. 

 

 

Carefully remove the cloth padding 

around the left and right headphones. 

Install the new batteries in their housings 

as illustrated. Check for c/- 

polarity. 

Bring the cloth padding up over the 

sloped guide slot. Hold it in place with 

your thumb just after the slope to ensure 

that it does not leave the guide. 

Turn the padding as illustrated. It will slide 

into the guide slot by itself. Keep turning it 

until it is correctly in place. Once it has 

taken on an oval shape, then it is 

correctly positioned. 

Summary of Contents for HP4390

Page 1: ...D player CD player TV set VCR Hi Fi system or radio range 50 meters FEATURES 1 Auto Scanning system on headphone 2 Phase Lock Loop PLL transmission system on transmitter 3 Automatic battery recharging batteries supplied 4 900 MHz RF technology 5 RF technology leaves you completely free to move around 6 Transmission is not restricted solely to line of sight 7 Rechargeable receiver headphones 8 Char...

Page 2: ...m 6 3 mm diameter 9 RCA socket audio adapter 10 Operating indicator light 11 Charge indicator light 12 Audio connection cable with 3 5 mm jack plug 13 Volume control knob VOL 14 AUTO SCAN indicator 15 AUTO SCAN button 16 Channel selector CHANNEL 3 2 1 17 DC IN connector 18 Audio input cable INSTALLATION TRANSMITTER 1 Connect the mains adapter provided to an electrical outlet 2 Connect the mains ad...

Page 3: ...rresponding indicator light will come on 5 NOTE You should then be able to move around freely from one room to another without any interference If interference does occur interruptions in the signal press the Auto Scan button once to find a better reception channel A For better stereo reception stay approximately seven meters away from the transmitter when you press the Auto Scan button B If it is...

Page 4: ...isposal container to ensure that they are eliminated safely and in an environmentally friendly way Thank you 7 REPLACING BATTERIES Rechargeable batteries have a long service life If it is however necessary to replace them proceed as described below Only use rechargeable batteries of the type specified under the Technical specifications heading The rechargeable batteries supplied with the headphone...

Page 5: ...to the On The headphones battery charge level may be too low Recharge the batteries or replace them with fully charged batteries Ensure that your TV set Hi Fi system or audio component is switched on and set to a channel that broadcasts an audio signal Use the headphones volume control to increase the sound level The connected audio video equipment may not be in playback mode Start playback on by ...

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