JBL Tune Flex Manual | Step-by-step Pairing & Charging

The JBL Tune Flex earbuds come with specs such as ANC, Ambient Aware, and TalkThru modes, up to 8 hours of battery life with a single charge (ANC off) or 6 hours (ANC on), Bluetooth 5.2 with A2DP V1.3, AVRCP V1.6 and HFP V1.7 support, built-in microphones in each earbud, a 570mAh battery on the charging case, app support, the IPX4 sweat and dust-proof certification, and much more. Learn how to use these earbuds using this  JBL Tune Flex manual!

If you are interested in purchasing these earbuds, you can easily do it on the JBL official online store. Also, if you want to give the original manual a look, you can do it here.

JBL Tune Flex Specs Sheet

Model	JBL Tune Flex
Weight	Earbuds: 4.8 grams Charging case: 38.6 grams
Waterproof/IP ratings	IPX4
Bluetooth version	V5.2
Range/Distance	10 meters
Driver	12mm
Connectivity Port/ Charging Cable	Type-C
Speaker frequency response	20Hz – 20kHz
Battery Life	Earbuds: 6 hours (ANC on)/8 hours (ANC off) Charging case: 18 hours
Charging Time	Earbuds: About 2 hours
App Support	Yes, JBL Headphones
Controls/Features	Play and pause a song, play the next and previous song, answer, end a call, voice assistant, mute or unmute the microphone, ANC mode, Ambient Aware mode, TalkThru
Accessories	Charging case, user manual, USB cable, silicone ear tips, warranty card, open ear tip
Price	100 USD

JBL Tune Flex Accessories

The earbuds come with the following accessories:

• Charging case.
• User manual.
• USB cable.
• Silicone ear tips.
• Warranty card.
• Open ear tip.

JBL Tune Flex | This Is All You Have To Know!

How to Pair The Earbuds?

To Android And iOS Devices

Step 1: Open the lid of the charging case. After that, the earbuds will turn on automatically.

If the earbuds don’t enter pairing mode automatically, then press the multifunction touch button on both earbuds one time and then press and hold for about 5 seconds.

Step 2: Unlock the desired device.

Step 3: Turn on Bluetooth on the desired device.

Step 4: Go to the device’s Bluetooth settings.

Step 5: Select the “JBL TUNE FLEX” earbuds. If a password is needed, write “0000”. A blue light will start flashing.

After that, the flashing light will stay still, and the pairing will be done.

To PC (Windows)

Step 1: Open the lid of the charging case. After that, the earbuds will turn on automatically.

If the earbuds don’t enter pairing mode automatically, then press the multifunction touch button on both earbuds one time and then press and hold for about 5 seconds.

Step 2: Unlock the desired device.

Step 3: Go to the Settings.

Step 4: Go to “Bluetooth and other devices”.

Step 5: Turn on Bluetooth on the device.

Step 6: Click on “Add device”.

Step 7: Select the “JBL TUNE FLEX” earbuds. If a password is needed, write “0000”. A blue light will start flashing.

After that, the flashing light will stay still, and the pairing will be done.

How to Turn On and Off?

Turn on: Open the lid of the charging case. After that, the earbuds will turn on automatically.

Turn off: Place the earbuds into the charging case and close its lid. After that, the earbuds will turn off automatically.

How to Wear?

Step 1: Take both earbuds out of the charging case.

Step 2: Identify the left and right earbuds.

Step 3: Choose the ear tips that best suit your ears.

Step 4: Insert the earbuds into the inner canal of the ears.

Step 5: Rotate for the best possible comfort and best fit, and make sure that the microphone is pointing to the mouth.

Step 6: Pair the earbuds with the JBL HEADPHONES app.

Step 7: Go to the Ear Tip Sound Settings section and configure as necessary.

NOTE: To configure the earbuds, press the multifunction touch button on both earbuds three times, and then press and hold for 2 seconds.

How to Control These Earbuds? – Stereo Mode

NOTE: The multifunction touch sensor is placed on the top part of the stem of the earbuds.

• Activate/change between ANC and Ambient Aware modes: Press the multifunction touch button on the left earbud one time.
• Activate the TalkThru mode: Press the multifunction touch button on the left earbud two times.
• Play or pause the music: Press the multifunction touch button on the right earbud one time.
• Play the next song: Press the multifunction touch button on the right earbud two times.
• Play the previous song: Press the multifunction touch button on the right earbud three times.
• Answer an incoming call: Press the multifunction touch button on any of the earbuds two times.
• End a current call: Press the multifunction touch button on any of the earbuds two times.
• Mute or unmute the microphone: Press and hold the multifunction touch button on any of the earbuds for about 2 seconds.
• Activate the voice assistant: Press and hold the multifunction touch button on any of the earbuds for about 2 seconds.

How to Activate The Mono Mode?

To activate or deactivate the mono mode in these earbuds, all you have to do is to pair the earbuds to the device and take out one of the earbuds from the charging case. It will start working by itself.

How to Charge The Earbuds?

Earbuds

To charge the earbuds, all you have to do is to place them into the charging case and close the lid. The earbuds will start charging automatically.

Charging case

To charge the charging case, all you have to do is to connect the case to a USB charger or charging port with the included USB-A to C cable. It will start charging automatically.

How to Factory Reset These Earbuds?

Step 1: Delete all “JBL TUNE FLEX” earbuds pairing information on the connected device.

Step 2: Take both earbuds out of the charging case.

Step 3: Press the multifunction touch button on both earbuds two times.

Step 4: Press and hold the multifunction touch button on both earbuds for about 5 seconds. A blue light will start flashing quickly.

Step 5: Place both earbuds into the charging case.

After that, the resetting will be done.

What Do The Lights Mean?

Earbuds

• A blue light flashing: The earbuds are pairing to the device.
• A blue light on: The earbuds are now paired.
• A blue light flashing slowly while pairing: There was a pairing error.
• A blue light flashing quickly while resetting: The earbuds are resetting.

Charging case

• One light flashing while charging: The case has a low battery level.
• One light on and one flashing while charging: The case is charging.
• All lights turn off while charging: The case is fully charged.
• Some lights flashing with the earbuds inside: The earbuds are charging.
• Said flashing lights turn off with the earbuds inside: The earbuds are fully charged.

A Guide To JBL Tune Flex APP

The JBL Tune Flex can be used with an application, called JBL HEADPHONES. This application is available in the Apple Store and in the Play Store for iOS and Android devices. When opening the application, the first thing we have to do is connect our earbuds, and after that, three specific pages:

• First page: This is the first page of this application, and you will be able to see the connected device.
• Main page: On the main page, we will not only find the connected device but also the battery percentages of both earbuds. Also, you will find options like enabling or disabling the ANC, enabling or disabling the Ambient Sound Control, and the Smart Audio and Video feature. Also, you will be able to configure the controls of the earbuds, enable or disable the auto turn-off of the earbuds, the Find My Earbud feature, and information about the earbuds, and the firmware version.

Some Common Earbuds Problems & Troubleshooting

Left / Right / One side of the earbuds has stopped working

If this happens, it may be because it is low on battery or it did not connect correctly with the device. To fix this, you can do the following:

1. Try charging the earbud that is not working or both, placing them in the charging case.

2. Try factory resetting the earbuds.

3. Check if the earbuds are operating within a normal working range

If that doesn’t work, the earbud is probably faulty, and I can go for a refund or replacement of it.

Left / Right / One side of the earbuds has a low volume

If this happens, it may be because the earbuds are dirty or the volume is set low. To fix this, you can do the following:

1. Try cleaning the earbud using a cotton swab or carefully clean the mesh with a pin.

2. Try factory resetting the earbuds.

The microphone is not working

If this happens, it can be because the microphone is muted, or the earbuds are badly positioned. To fix this, you can do the following:

If the microphone is muted, check the device microphone volume. If that doesn’t work, that means that there might be a defect in the earbud, so try replacing them or get a refund.

The earbuds are not connecting to Windows/laptop/PC

If the earbuds are earbuds not connecting, it can be because the Bluetooth on the computer has a pairing problem. To fix this, you can do the following:

1. Try disabling Bluetooth from nearby devices >>> then activate the pairing mode of the earbuds, pair and connect earbuds from Settings >>> Bluetooth & other devices >>> Add a new device >>>> select Bluetooth.

2. Try uninstalling and reinstalling the Bluetooth driver, or updating the Bluetooth driver. All can be done in Manage >>> Device Manager, reset earbuds (if available), and then repeat the step.

3. Try resetting the earbuds.

FAQs

We hope you now know how to operate the earbuds from the above JBL Tune Flex manual. Want to know anything about the earphones? Do not hesitate to ask in the comments section.