Yamaha TW-EF3A Mode d'emploi

True Wireless Earbuds

User Guide

EN

Contents

Read This First 4

Advantages of this product.........................................................................4

About the manuals....................................................................................6

Cautions regarding product handling...........................................................7

When using this product for the first time 8

Accessories and part names........................................................................8

Peeling off isolation sheets.......................................................................10

Charging and Powering 11

Charging the earbuds...............................................................................11

Charging the charging case.......................................................................13

Turning on the power...............................................................................14

Turning off the power..............................................................................15

Remaining Battery Power.........................................................................16

Bluetooth® Connectivity 17

Pairing and Connecting for the First Time...................................................17

Pairing and Connecting with a Different Device.. ......................................... 20

Multipoint connection (connecting to two devices at the same time)..............23

Wearing This Product 25

Putting on the earbuds.............................................................................25

Operation (Audio Playback and Phone Calls) 26

Operations during audio playback.............................................................26

Talking on the phone.. ............................................................................. 28

Starting the voice assistant.. .................................................................... 29

2

Contents

Troubleshooting 30

Read this first.........................................................................................30

Cannot pair/connect................................................................................31

Multipoint connection unavailable.............................................................32

Power will not turn on.. ........................................................................... 33

The product cannot be charged.. ............................................................... 34

The product does not operate or play back..................................................35

No sound can be heard.. ........................................................................... 36

Sound can only be heard from one earbud...................................................37

Sound is not good or sounds strange..........................................................38

The sound is distorted, noisy or choppy......................................................39

Using only one of the earbuds.. ................................................................. 40

Initializing (performing a factory reset)......................................................41

List of support centers............................................................................. 43

List of operations and indications 44

List of operations.................................................................................... 44

List of indicator displays and audio messages..............................................46

Appendix 48

Specifications.........................................................................................48

Trademarks and licenses..........................................................................50

3

Contents

Read This First

Advantages of this product

This product is a set of wireless earbuds that connect to Bluetooth devices such as a portable music player or

smartphone.

This product also features “LISTENING CARE”, Yamaha’s proprietary technology for reducing ear fatigue.

nSupported codecs

This product supports SBC and AAC codecs.

nGoogle Fast Pair

You can easily pair this product with your Android™ smartphone. Pairing is supported with Android devices

that run Android OS 6.0 or later, or Google Play 11.7 or later.

(“Pairing and Connecting for the First Time”(p.17)

nMultipoint connection

You can pair and connect this product to two Bluetooth devices simultaneously.

nLISTENING CARE

This product features LISTENING CARE, which lets you enjoy rich sound quality even at a low volume.

Focusing on the characteristics of the human ear where the low- and high-end sounds become harder to

hear at lower volumes, as well as how things sound differently in different listening environments, this

feature corrects the sound balance for the optimal sound to match the volume. By rendering a natural sound

that's easy to listen to, this feature reduces the load on your ears caused by excessive levels.

nCLEAR VOICE

Enabling CLEAR VOICE reproduces human voices with clarity, making them more discernible in content. This

is recommended for movies and games with a lot of background music and sound effects.

nGAMING MODE

This function also makes the audio and video sound more in sync, which is useful when you are watching a

video or playing a game.

(“Operations during audio playback”(p.26)

nSmartphone feature support

You can use this product to talk on the phone and start up the voice assistant while connected to this

product.

4

Read This First > Advantages of this product

NOTE

When using GAMING MODE, the video/audio latency may change or the sound quality and connection stability may degrade,

depending on the usage environment and how you wear the product.

Related links

(“Pairing and Connecting for the First Time”(p.17)

(“Multipoint connection (connecting to two devices at the same time)”(p.23)

(“Operations during audio playback”(p.26)

(“Starting the voice assistant”(p.29)

5

Read This First > Advantages of this product

About the manuals

Three manuals (Safety Guide, QUICK REFERENCE GUIDE and User Guide) are available for users of this

product. Be sure to read all manuals and keep them in a safe, accessible place for future reference.

Available manuals

Safety Guide (included)

This provides “Safety Precautions” that must be observed when using this product. Be sure to read them

before using this product.

QUICK REFERENCE GUIDE (illustrations on product’s inner box)

This illustrates how to immediately use the product after purchase.

User Guide (this guide)

This provides details on all functions. This guide is only available from our website.

(The precautions and other matters in this guide are classified as follows.

(CAUTION

This content indicates “risk of injury.”

(NOTICE

Indicates points that you must observe in order to prevent product failure, damage or malfunction and

data loss, as well as to protect the environment.

(NOTE

Indicates notes on instructions, restrictions on functions, and additional information that may be

helpful.

NOTE

(The explanations in this guide are based on the latest specifications at the time of publication.

(The latest version (PDF) of each guide can be downloaded from the following website.

https://download.yamaha.com/

6

Read This First > About the manuals

Cautions regarding product handling

Please read the “Safety Guide” included with this product, and use caution regarding the following points.

Waterproof performance

The waterproof performance of this product are as shown below. Product failures caused by water ingress

due to incorrect handling are not covered by the warranty.

(Earbuds

(The waterproof performance of the body of these earbuds is compliant with IPX4 standards. This

product will continue functioning even when exposed to water splashing from any direction (Earbud

nozzle: Excluding the sound conduit).

(The waterproof performance of this product will not continue to last, and may degrade through regular

use.

(Charging case

The charging case and the included USB power cable are not waterproof. Use caution regarding the

following to avoid electric shock or product failure.

(Do not expose this product to liquids such as sweat, rainwater or seawater.

(Thoroughly wipe off any sweat, rainwater, seawater or other liquids that get on the earbuds before

placing them back in the charging case.

About IPX

(IPX refers to a product's “liquid ingress protection” according to JIS C 0920 (the harmonized standard of IEC 60529), “Degrees of

protection provided by enclosures (IP Code)”.

(These are provisions that guarantee the performance of a product in fresh water or tap water at room temperature. This does

not guarantee equivalent performance in warm water, seawater or the like.

About the charging performance

This product uses lithium-ion batteries in both the earbuds and in the charging case. Lithium-ion batteries

are consumable items. To extend the life of the batteries as long as possible, use caution regarding the

following.

(If the product is not used for a long period of time, it may take longer to recharge the batteries.

(When storing the product for a long time, charge the product around once every six months to avoid

excessive discharge.

(If the duration of the battery’s charge is too short, it may have reached the end of its lifespan. Contact a

Yamaha repair consulting center.

(Refer to the “Safety Guide” for details such as disposal methods.

7

Read This First > Cautions regarding product handling

When using this product for the first time

Accessories and part names

Make sure that all of the accessories are included with this product.

Earbuds

cb

a

Earbud (L) Earbud (R)

aFunction key

bIndicator

cMicrophone for phone calls

Charging case

d

e

BackFront

dCharging indicator

eCharging connector

8

When using this product for the first time > Accessories and part names

USB power cable (30 cm (11-3/4 in); type A to C)

Safety Guide

NOTE

(At the time of purchase, the earbuds are stored in the charging case.

(The charging case contains a battery for charging the earbuds.

9

When using this product for the first time > Accessories and part names

Peeling off isolation sheets

Remove the earbuds from the charging case the first time you use this product, and peel off the isolation

sheets found on each.

Isolation sheet

10

When using this product for the first time > Peeling off isolation sheets

Charging and Powering

Charging the earbuds

Charge the earbuds before use by placing them in the charging case.

CAUTION

(The charging case is not waterproof. Thoroughly wipe off any sweat, rainwater, seawater or other liquids that get on the

earbuds before placing them back in the charging case.

(Charge this product within a temperature range of 5 to 40 °C.

Indicator

Charging indicator

1Open the charging case lid.

2Place the earbuds in the charging case.

Make sure that the L and R earbuds are in their respective locations, and then firmly and fully

insert them into the charging case.

The earbud indicators light up while charging, and turn off when charging is completed.

Charging takes about two hours.

If earbud charging does not begin after placing them in the charging case, make sure that the

earbuds are correctly seated in their earbud storage compartments in the charging case.

NOTE

(Remove the earbuds from the charging case the first time you use this product, and peel off the isolation sheets found on each.

(If the charging case has no remaining battery power, the earbuds will not turn on when they are taken out of the charging case. If

this happens, charge the charging case and then try charging and removing the earbuds again.

(You cannot connect the earbuds via Bluetooth or use them for playback while they are recharging.

11

Charging and Powering > Charging the earbuds

Related links

(“Remaining Battery Power”(p.16)

(“Specifications”(p.48)

12

Charging and Powering > Charging the earbuds

Charging the charging case

To charge the charging case, connect the included USB power adaptor.

CAUTION

(The charging case is not waterproof. Do not expose this product to liquids such as sweat, rainwater or seawater.

(Be sure to use the USB power cable that was included with this product.

(When using a USB power adaptor, be sure that the commercially-available adaptor is compatible with 5 V DC (at least 0.5 A)

power output.

(When charging this product inside of China, be sure to use a USB power adaptor that is approved by CCC.

(Charge this product within a temperature range of 5 to 40 °C.

USB power adaptor

(commercially available)

Type A

Type C

Front

Charging indicator

1Plug the USB power cable (type C side) into the charging case.

2Plug the USB power cable (type A side) into the USB power adaptor.

3Plug the USB power adaptor into the power outlet.

After the remaining battery power of the charging case has been indicated, charging begins. Charging takes

about two hours.

The charging case indicator flashes while charging and is lit when charging is completed.

NOTE

(You can also charge the earbuds while the charging case is charging.

(You can charge from the USB port on your computer instead of using a USB power adaptor.

Related links

“Remaining Battery Power”(p.16)

13

Charging and Powering > Charging the charging case

Turning on the power

Once you remove the earbuds from the charging case, the earbuds will turn on.

1Remove the earbuds from the charging case.

The indicators light up as shown below, and the power turns on.

Lights up for

about 1 sec

Lights up for

about 1 sec

NOTE

(If the earbuds do not turn on after removing them from the charging case or if they had already been removed from the charging

case, hold down the function keys on earbuds (L) and (R) for about three seconds to turn on the earbuds.

(When an earbud is low on battery power, its indicator flashes three times when you turn the earbud on. If this happens, charge the

earbud.

(If the charging case has no remaining battery power, the earbuds will not turn on when they are taken out of the charging case. If

this happens, charge the charging case and then try charging and removing the earbuds again.

Related links

“Remaining Battery Power”(p.16)

14

Charging and Powering > Turning on the power

Turning off the power

Placing the earbuds back into the charging case turns them off.

1Place the earbuds in the charging case.

The earbuds will turn off and enter charging mode.

NOTE

To turn off the earbuds without placing them back into the charging case, hold down the function keys on earbuds (L) and (R) for

about seven seconds. The “Power Off” audio message plays in the earbuds, and the indicators will display as shown below.

Lights up for

about 1 sec

About

7 sec

15

Charging and Powering > Turning off the power

Remaining Battery Power

Earbuds

After this product is turned on, the audio message in the earbuds tells you how much battery power is left.

(Audio messages:

(Battery High: plenty of charge remaining

(Battery Medium: moderate charge remaining

(Battery Low: small amount of charge remaining

Charging case

After placing the earbuds in the charging case, the indicator on the charging case indicates the remaining

battery power as shown below.

Remaining battery power Indicator

20% or more Lights up for about three seconds

Less than 20% Flashes for about three seconds

0% Not lit

Related links

(“Charging the earbuds”(p.11)

(“Charging the charging case”(p.13)

16

Charging and Powering > Remaining Battery Power

Bluetooth® Connectivity

Pairing and Connecting for the First Time

When first connecting this product to a Bluetooth device (such as a smartphone), follow the steps below to

pair (register) this product with that device.

NOTE

(Remove the earbuds from the charging case the first time you use this product, and peel off the isolation sheets found on each.

(You can use Google Fast Pair (described afterwards) to easily pair this product with your Android smartphone.

1Remove the earbuds from the charging case.

The earbuds turn on, and a sound effect plays when they are connected to each other. Next,

either the left or right earbud becomes the primary earbud and enters pairing standby mode.

Then, the earbud indicators light up as shown below, and the “Pairing” audio message plays.

Flashes

Lights up for

about 1 sec

Lights up for

about 1 sec

Earbud that is now primary

NOTE

The illustrated example shows earbud (R) as the primary earbud. The primary earbud is automatically determined based on

the remaining battery power. It is not important whether earbud (L) or earbud (R) becomes the primary earbud.

2Activate Bluetooth on your Bluetooth device (such as a smartphone).

A list of Bluetooth devices that can be connected will be shown.

17

Bluetooth® Connectivity > Pairing and Connecting for the First Time

3Select this product from the list on your Bluetooth device.

Yamaha TW-EF3A

Once connected, the indicator on the primary earbud lights up as shown below. You will hear

the “Connected” audio message in the earbud.

Earbud that is now primary

Lights up for

about 10 sec

This completes pairing and connection. Play music on your Bluetooth device and check if you can hear

sound from the earbuds.

Connecting using Google Fast Pair

You can easily pair this product with your Android smartphone.

Pairing is supported with Android devices running Android OS 6.0/Google Play 11.7 or later.

1Activate Bluetooth on your Android device.

18

Bluetooth® Connectivity > Pairing and Connecting for the First Time

2Remove earbud (L) and (R) from the charging case and bring them near your

Android device.

A notification will be shown on your Android device.

3Tap the notification on your Android device.

The device will then finish pairing with this product.

The indicator on the primary earbud lights up for about 10 seconds, and the “Connected”

audio message plays.

NOTE

To use Google Fast Pair, you’ll need to configure your Google account and connect to a network.

nHow can I disconnect the Bluetooth device?

Disconnect using one of the following methods.

(Place the earbuds back into the charging case, or manually turn off the earbuds.

(Deactivate Bluetooth on the Bluetooth device.

(Delete the device from the list of Bluetooth devices that can be connected (pairing is required to

reconnect).

nAfter disconnecting, can I reconnect?

After activating Bluetooth on the device you want to connect, remove the earbuds from the charging case.

The earbuds automatically connect to the last Bluetooth device to which they were connected.

NOTE

(Pairing standby mode will automatically end on this product after about two minutes. To pair again or if the connection was

unsuccessful, place the earbuds back into the charging case and start again at step 1.

(If earbuds (L) and (R) do not automatically connect, one earbud will not output sound. When this happens, place the earbuds back

into the charging case, and then take them out again.

(This product cannot be paired with devices that require a passkey when pairing, as this feature is unsupported.

Related links

(“Pairing and Connecting with a Different Device”(p.20)

(“Using only one of the earbuds”(p.40)

19

Bluetooth® Connectivity > Pairing and Connecting for the First Time

Pairing and Connecting with a Different Device

Follow the steps below to pair with another Bluetooth device, or to try pairing with the same device again.

NOTE

Up to four Bluetooth devices can be registered with this product. If you pair a device beyond the maximum number, the information

for device you first paired (the oldest pairing) will be deleted.

1Remove the earbuds from the charging case.

The earbuds will turn on.

2With earbuds (L) and (R) turned on, hold down the function keys on earbuds (L) and

(R) at the same time for about three seconds.

Either earbud (L) or (R) will be the primary earbud, and its indicator alternately flashes while

you hear the message “Pairing”. This means that the earbud is in pairing standby mode.

About

3 sec

Earbud that is now primary

Flashes

NOTE

(The illustrated example shows earbud (R) as the primary earbud. The primary earbud is automatically determined based

on the remaining battery power. It is not important whether earbud (L) or earbud (R) becomes the primary earbud.

(Google Fast Pair can also be used to connect.

20

Bluetooth® Connectivity > Pairing and Connecting with a Different Device

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Yamaha TW-EF3A Mode d'emploi

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