KYOWA HARMONET LTD. TWZ-1000 Manuel D’Utilisation

The headphones operates within a range of about 10 m (30 feet). Maximum commu-

nication range may vary depending on obstacles (human body, metal, wall, etc.) or 

electromagnetic environment.

The headphones may affect the operation of electronic medical devices. Turn off the 

headphones in locations where is in a hospital, a petrol station or near automatic 

doors or a fire alarm, as it may cause any accident. 

Due  to  the  characteristic  of  the  wireless  technology,  the  sound  played  on  the 

headphones is delayed from the sound and music played on the sending Bluetooth 

device.

Connection with all Bluetooth devices cannot be guaranteed.

Even if the connected Bluetooth device conforms to the Bluetooth standard, some 

Bluetooth devices may not be connected or work correctly, depending on the features 

or specifications of the device.

Free calling apps are not available for the headphones.

Headphones

In a dry environment or winter season static electricity accumulated in the body may 

cause  mild  tingling  in  your  ears. To  minimize  the  effect,  wear  clothes  made  from 

natural materials.

If  you  hear  "solid  crispy  noise"  in  wearing  the  headphone(s)  it  desappears  after 

installing the headphone(s) properly.

Wash the eartips and silicone covers by hand with mild neutral detergent regularly, 

removing them from the headphones, and also remove the ear wax or dust from the 

filter on the front nozzle by a cotton swab. It reduces risks of sound deterioration or 

any failure. Do not fix eartips and headphones by glue.

For replacement you can purchase extra eartips and silicone covers at stores.

Waterproofness

The  water  resistance  of  this  product  is  equivalent  to  IPX5  in  IEC  60529  for  the 

headphones and IPX3 for the charging case. However, these items cannot be used in 

water.  Note the following cautions and use the product correctly.

Headphones

JIS C 0920(IEC60529)

Charging case

[ Cautions / to maintain water resistant performance ]

Do not splash water forcibly against the filter on the headphones from which sound 

is emitted.

Do not put or use the product in water . 

Unless the product is used correctly, it may cause fire, electrocution, or malfunctions.

Make sure the USB port cover is closed securely when to use.

Wipe off with a soft dry cloth any water that gets on the headphones and charging 

case.  If  water  remains  in  the  nozzle  part  of  the  headphones,  remove  the 

headphones, face the nozzle downward, and shake the nozzle a couple of times.

Bluetooth®のワードマークおよびロゴは、Bluetooth SIG,inc.が所有する登録商標であり、

協和ハーモネット株式会社はこれらのマークをライセンスに基づいて使用しています。

Qualcomm®は米国および他の国々で登録されたQualcomm Incorporatedの商標で、

許可を受けて使用しています。Qualcomm

®

aptX

TM

audioは米国および他の国々で登録さ

れたQualcomm Technologies International, Ltd.の商標で、許可を受けて使用していま

す。その他記載した商標は各社の登録商標です。

本製品の仕様および外観は、改良のため予告なく変更することがあります。

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Safety precaution contains notes for safe use of this product. Incorrect usage may cause 

fire or injury. Be sure to read it before use and handle it properly. Keep it in a place where 

you can be helped when necessary.

NOTE: This equipment has been tested and found to comply with the limits for a Class 

B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to 

provide reasonable protection against harmful interference in a residential installation. 

This  equipment  generates  uses  and  can  radiate  radio  frequency  energy  and,  if  not 

installed and used in accordance with the instructions,

may cause harmful interference to radio communications. However, there is no guaran-

tee  that  interference  will  not  occur  in  a  particular  installation.  If  this  equipment  does 

cause harmful interference to radio or television reception, which can be determined by 

turning the equipment off and on, the user is encouraged to try to correct the interference 

by one or more of the following measures: —Reorient or relocate the receiving antenna. 

—Increase  the  separation  between  the  equipment  and  receiver.  —Connect  the 

equipment  into  an  outlet  on  a  circuit  different  from  that  to  which  the  receiver  is 

connected. —Consult the dealer or an experienced radio/TV technician for help. This 

device complies with FCC radiation exposure limits set forth for an uncontrolled environ-

ment. This device complies with Part 15 of the FCC Rules. Operation is subject to the 

following two conditions: (1) this device may not cause harmful interference, and  (2) this 

device must accept any interference received, including interference that may cause 

undesired operation.

[Caution] Any changes or modifications not expressly approved by the party responsible 

for compliance could void the user's authority to operate the equipment.

: Attention

: Indication

: Prohibited

: Prohibited

:  

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Driver 

Dynamic

Frequency band 

20Hz - 20,000Hz 

 

MIC 

omni-directional MEMS MIC

 

 

Bluetooth version 5.0

Bluetooth Class 

Power Class1

Radio band 

2.4GHz (2.402GHz~2.480GHz)

Modulation method FHSS

Bluetooth profile A2DP/AVRCP/HFP/HSP

Codec SBC,AAC,Qualcomm® aptXTMaudio

Contents protection SCMS-T

Communication band (A2DP) 

20~ 20,000Hz

Accessories Charging case, USB cable, eartips(S/M/L), silicone cover(XS/S/M/L) 

Battery 

3.7V

Net Weight 

Play time 

Water resistance Headphones / IPX5 , Charging case / IPX3

SBC/AAC/Qualcomm

®

aptX

TM

audio

Bluetooth profile：A2DP/AVRCP

1

2

3

4

Otherwise it may become a cause of generation of heat, ignition and explosion.

Doing so may cause a fire.

Doing  so  could  result  in  fire, heat  build-up,  explosion,  liquid  leaking  from the battery  and 

performance degradation. And it may cause deterioration and damage lead to failure of the 

product.

Otherwise fire will be happening if the short circuit occurs.

Incorrect connection could lead to electric shock and ignition.

Radio waves may affect instruments, causing an accident due to malfunction. 

Doing so may have a risk of a traffic accident.

Otherwise fire or thermally deforms of the product may occur due to excessive heat.

This product contains small parts which may be a choking hazard. Not suitable for children 

under age 3.

Otherwise  it  may  cause  liquid  leaking  from  the  battery,  heat  build-up,  explosion  and 

performance degradation.

Otherwise liquid leaking from the battery, heat build-up, explosion, damage and ignition may 

be caused.

Damage of the inside parts may cause fire or failure.

Otherwise it may cause fire or electric shock.

This product is complies with or has received approval of ratio laws in those countries and 

geographic areas. Using this product in other areas has a risk of civil and criminal penalties.

If an eartip accidentally detaches and is left in your ear, it may cause injury. 

Leaving the headphones outside for a long term may cause deterioration of the battery.

Please see ZERO AUDIO website or ZERO AUDIO app.

Please see ZERO AUDIO website or ZERO AUDIO app.

Headpones 13.2g      Charging case 40.3g

7 hours

Stanby time

168

hours

charging time

hours

1.5

communication distance  15m

SPL (dB/1mW) 

Microphone sensitirity 

Ａｐｐｒｏｐｒｉａｔｅ　ｔｅｍｐｅｒａｔｕｒｅ　ｆｏｒ　ｗｏｒｋｉｎｇ　　２５℃　　４５°

Ａｐｐｒｏｐｒｉａｔｅ　ｔｅｍｐｅｒａｔｕｒｅ　ｆｏｒ　Ｃｈａｒｇｉｎｇ　　２５℃　　３５°

-25±3 dB

100±3dB

Wireless Stereo Headphones

FCC ID: 2ARNT-TWZ-1000