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At the time of purchase, size M earpiece are attached to the main 
unit. If size M does not fit your ears, please replace with the size S 
or size L earpiece in the contents. If the earpiece does not fit 
correctly, it will not be possible to seal the ear hole with the 
earpiece, which may cause sound leakage and bass to be heard. 
Also, if you feel that the volume is low, there is a possibility of 
sound leakage.

How to Use

3

1.

 Choosing an earpiece

When replacing an earpiece, be sure to attach it securely to the 
main body. If it is not firmly attached, the earpiece may come off 
and remain in your ear. If it remains in your ear, be careful not to 
push it into the back of your ear further.

Lightning Earphones

MXH-C120L

manual.

Maxell shall not be responsible for 

any loss resulted from malfunction when 
connecting to interconnecting devices.

This 

product is not being designed to be any 
equipment or device which could be  
concerned with human life such as medical 
device, nuclear device, astronomic device, 
transportation device etc., nor equipment or 
devices which requires high reliability. In case 
this product is used for the above equipment 
and/or systems, Maxell do not responsible for 
any injuries or fire accident cause by the 
failure of this product.

This product is 

intended for use only in Japan. We assume no 
responsibility for use in any country other 
than Japan.

Contents of this user manual might be 
changed in the future without prior notice.

For product improvement, change of 
appearance or specification might not be 
announced in advance.

Maxell shall not be responsible for any 

damage caused by fires, earthquakes, action of 
a third party, any accidents, intended or 
unintended misuse or other usage under 
abnormal conditions.

All explicit and implicit 

contents not stated in the warranty card are 
not covered.

Maxell shall not be responsible 

for failure due to any damage caused by usage 
other than described in the instruction 

Introduction

1

About the user manual

Disclaimer

Thank you for purchasing this MAXELL product. Before use, make sure to read this Instruction Manual 
and use the product correctly and safely. 

Instruction Manual

Safety Precautions

2

Warning refers to misuse which might lead to death or serious

injury

1

 . 

Stands for prohibited actions 
when handling the product. 

Stands for instruction which 
must be followed. 
 

Caution refers to misuse which might lead to injury

and may 

cause property damage

3

.

If you continue to use it, it may cause inflammation, rash and other conditions. 
When you feel abnormal, stop using it and consult a doctor.

Stop using when your skin feel uncomfortable

It may cause deteriorates, 
malfunction, etc.

Do not expose the product 
to water

It may hurt the ears.

Do not push the earphones hard 
into the ears

1

Severe injury refers to things that have aftereffects such as blindness, injury, burns, electric shock, 

      fractures, poisoning, etc., and those requiring hospitalization or long-term regular hospital visits for 
      treatment.

2

Minor injury indicate injury, burns, electric shocks that do not require hospitalization or long-term 

      regular hospital visits for treatment.

3

"Property damage" refers to indirect damage related to houses, household goods, livestock and pets.

Please be sure to observe it for safe use. 

WARNING

WARNING

Do not repair, alter or 
disassemble the product.

Otherwise, fire, electric shock 
or injury may occur.

Even while walking, using it in where it will be dangerous if surrounding 
sounds cannot be heard (such as railway crossings, crosswalks, station 
platforms, roadways, construction sites, etc.) can cause unexpected serious 
accidents.

Do not use at locations where it will be dangerous if surrounding sounds 
cannot be heard

Do not use while driving a car, 
motorcycle, a bike, etc.

May cause traffic accident as hard to 
hear surroundings.

If swallowed or the cord gets entangled around the neck, it may cause 
choking etc.In case of accident, seek medical attention immediately. 

Store properly at places out of children’ s reach

Do not place in a place where the temperature becomes abnormally high

CAUTION

Continuously listening to loud volume can result in overstimulation 
of ears for an extended period of time. It may affect the hearing. 
Furthermore, if the volume is raised too much from the beginning, the 
sudden loud sounds may harm ears. Before using, please reduce the 
volume of the connected device.

Not only will the device surface and parts deteriorate, but it may also 
cause a fire. Be especially careful inside a closed car in summer, in direct 
sunlight, or near a stove.

Do not increase the volume too much

About 
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