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*  The communication connector serves for adjustment of 

the hearing aid by the hearing aid professional.

Battery Placement

1.  Peel off the sticker on the positive side of battery (PR41 or 

312 zinc-air battery).

2. Open the battery holder with the tip of your finger.

3. Insert a PR41 or 312 battery into the 

battery holder. 

You do not have to 

worry about the polarity.

4. Close the battery holder.

Battery life 

 (PR41 or 312, for continuous use)
ANSI: 

Approx. 160 hours

IEC: 

Approx. 170 hours

-  Battery life will change depending on the operat-

ing condition.

Putting on Hearing Aid

This  hearing  aid  does  not  have  a  power  switch.  The  battery 
holder also functions as power switch.

Power/OFF: 

Open the battery holder.

Power/ON: 

Close the battery holder firmly.

1.  Open the battery holder slightly, so that the 

hearing aid is set to the OFF condition.

2. Place the hearing aid on the ear.

HOW TO USE YOUR FIRST HEARING AID

  Any hearing aid cannot return level of your hearing to normal or 

halt further hearing deterioration, but proper use of your hearing 
aid can help you hear what is going on around you and let you 
get more enjoyment of life.

  If this is your first hearing aid, you - like most new users - will 

probably be surprised at the loudness of the sounds, and after 
using it for a short while, you may even feel that it is too noisy. The 
following three tips are important in overcoming your concerns.

1)  Read this manual and become familiar with the hearing aid's 

various mechanisms and how to use them correctly.

2)  First, use your hearing aid in a quiet place and listen to quiet 

sounds and give yourself sufficient time to get accustomed to 
the sound of your hearing aid.

3)  If any physical problems develop, consult your doctor.

FOR KEEPING YOUR HEARING AID LONGER

  Always keep the hearing aid clean. Clean the hearing aid with dry 

cloth periodically and also remove earwax plugged in the earpiece 
or earmold using eyebrush or toothbrush.

  Do not expose the hearing aid to the heat from stoves, etc. Also, 

avoid leaving it in places with high humidity.

  Operate the controls with care. Do not press hard.
  If the hearing aid is dropped in water, wipe with dry cloth and ask 

the dispenser for check.

  Do not pick the microphone with nail, pin, etc., because this may 

damage the microphone.

  Do not disassemble or attempt any repairs by yourself. Ask the 

dispenser for repair.

3-20-41 Higashimotomachi, Kokubunji, Tokyo 185-8533, Japan

HB-L1

DIGITAL HEARING AID

or

Selector button

Battery holder

Earpiece

Tube

Hook

Microphone

Selector button

Communication

connector

"Either way"

circuit

OPERATING INSTRUCTIONS

Parts and Controls

3. Turn the power on.

4. Press the selector button to adjust the volume to a suitable 

setting. 
The selector button serves either for "volume switching" or 
for  "memory  switching",  depending  on  which  function  was 
specified by the customer.

*  Adjust the volume according to the situation (volume of 

other voices, ambient noise, etc.).

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