LG TONE Free HBS-FN6 / HBS-FN4 Bluetooth Headset Manual

LG TONE Free HBS-FN6 / HBS-FN4 Bluetooth Headset Manual

Also See for TONE Free HBS-FN6:


LG TONE Free HBS-FN6 / HBS-FN4 Bluetooth Headset Manual

NOTE: For the best performance and to prevent any damage to, or misuse of the headset, please read all of the information carefully prior to using the headset.

Any modifications or changes to this manual due to typographical errors or inaccuracies of stated information shall only be made by LG Electronics Inc.

The LG TONE Free (HBS-FN6 / HBS-FN4) is a lightweight wireless headset that uses Bluetooth technology.

This product can be used as an audio accessory for devices supporting either the A2DP or Hands-Free Bluetooth Profile.

Safety Cautions

  • Do not disassemble, adjust, or repair the product arbitrarily.
  • Do not place the product near excessive heat or flammable material.
  • The product may be damaged if an incompatible charger is used.
  • Make sure that an infant or child does not swallow a magnet or a small component of the product.
  • Make sure that foreign objects do not enter the charger's connectors (charging port and power plug). Failure to do so may result in fire or electric shock.
  • If you have a medical device implanted, contact your doctor before using this device.
  • This product has a built-in battery, and the battery cannot be removed or replaced arbitrarily.
  • For your safety, do not remove the battery incorporated in the product.
  • If you arbitrarily replace the battery or don't replace it correctly, it may explode.
  • The lithium-ion battery is a hazardous component that can cause injury.
  • Battery replacement by an unqualified professional can cause damage to your device.
  • Do not replace the battery by yourself. The battery can be damaged, which can cause overheat and injury. The battery must be replaced by authorized service provider. The battery should be recycled or disposed separately from household wastes.
  • Do not discard the battery arbitrarily. Follow the local procedure for discarding batteries.
  • Risk of fire or explosion if the battery is replaced by an incorrect type.
  • Do not store or transport at pressures lower than 11.6 kPa and at above 15,000 m altitude.
  • Replacement of a battery with an incorrect type that can defeat a safeguard (for example, in the case of some lithium battery types).
  • Disposal of a battery into fire or a hot oven, or mechanically crushing or cutting of a battery, that can result in an explosion.
  • Leaving a battery in an extremely high temperature surrounding environment that can result in an explosion or the leakage of flammable liquid or gas.
  • A battery subjected to extremely low air pressure that may result in an explosion or the leakage of flammable liquid or gas.
  • Do not carelessly throw away old batteries. It can cause an explosion or fire. The disposal method may vary by country and region. Dispose of it in an appropriate manner.

  • Do not drop the product from a high place.
  • Make sure there is no water, alcohol, or benzene in contact with the product.
  • Do not store the product in a wet or dusty place.
  • Do not place heavy objects on the product.
  • This product is waterproof to the IPx4 level (daily life waterproof). (The IPx4 waterproof rating applies to the earbud product only.)
  • Do not put the product under the water or use it in a humid location such as a bathroom.

warning NOTE

  • If the product is exposed to excessive sweat, clean the product.
  • Keep the earbuds clean.

HD Speaker

If the communication network of the device you are connecting to supports HD Voice Calling, you can enjoy making voice calls and listening to music in high definition.

Product Components

Earbuds + Charging Case
LG TONE Free™ Earbuds (medium ear gels installed)
UV Charging Case (this only applies to HBS-FN6)

Ear Gels
Extra Ear Gels (small & large)

Charging Cable
USB Type C™ Charging Cable

User Manual
User Manual

Warranty Card (Republic of South Africa Only)

Warranty Card (Algeria Only)

NOTE: Actual product design may differ from images shown in manual.

Make sure authentic LG Electronics components are used. Using a non-authentic component may damage the product and thus void the warranty. Use the USB Type C™ cable provided with the product.

Product Description

Charging Case

Overview - Charging Case

  1. Mood light (When you open the charging case, the mood light turns on and off.)
  2. Charging port
  3. UV-C LED
  4. Charging terminals
  5. UV-C LED
  6. Pairing / Battery check button
  7. Status indicator light


Overview - Earbuds

  1. Microphone
  2. Speaker mesh
  3. Touchpad
  4. Charging terminals
  5. Microphone

*The appearance and specifications of the actual product may differ depending on the model.
NOTE: HBS-FN4 does not have a UV-C LED and mood light.

Pairing and Connecting

Fast Pair

  1. Activate Bluetooth on your phone or device.
  2. While the earbud is mounted in the charging case, open the charging case lid and press the pairing button for 3 to 5 seconds until the blue indicator light blinks.
    Fast Pair Step 1
  3. When the Fast Pair connection pop-up appears on the top area of the mobile phone screen, tap it to connect. (It only supports Android™ 6.0 or higher, and requires configuring Bluetooth and location information settings of the mobile device.)
  4. If the pop-up does not appear, select [LG HBS-FN6] from the Bluetooth menu on the mobile phone and connect it (for users of iOS or Android 5.0 or lower versions).
    Fast Pair Step 2

NOTE: To connect with another device, perform the above procedure again.

In the list of Bluetooth connected devices, LG HBS-FN6_LE is not the correct model name for connection. Check the model name in use and connect with the model name without "LE".

Automatic Reconnection

The earbuds are connected automatically when you open the cover of the charging case. If you close the cover of the charging case with both earbuds mounted in the charging case, the earbuds are disconnected.

How to wear earbuds

How to wear earbuds

Separate the earbuds from the charging case and adjust them so that they fit comfortably in your ears. When you wear the earbuds, you will hear a wearing detection alarm.

NOTE: You can easily separate the earbuds from the charging case by turning the part with dotted line in Image 1 to left or right and lifting the earbuds.

Indicator Light

Status Description
Bluetooth Search Mode The blue status indicator light blinks.
Battery below 20% The red status indicator light turns on and off.
Battery 20% - 80% The purple status indicator light turns on and off.
Battery 80% or more The blue status indicator light turns on and off.
When there is a problem while charging The red status indicator light blinks.
When the UVnano function is operating The status indicator light blinks slowly during the UV-C LED operation.

Mobile Calling Functions

Mobile Calling

Function Status Description
Answering Calls Ringing Touch the left or right earbud once.
Ending Calls Talking Touch the left or right earbud twice.
Making Calls Idle If you make a call using a mobile phone, the call is automatically connected to the headset.
Receiving Calls while on the Phone Talking If you touch the left or right earbud once, the current call will go on hold, and you will be able to answer an incoming call.
If the previous call is on hold, you can finish the current call on the mobile phone. (It works differently depending on the mobile phone settings.)
Rejecting Calls Ringing Touch and hold the left or right earbud.

Playing Music

Playing Music

Function Description
Play / Pause : Touch the left or right earbud once.
Adjusting the Volume : Touch the left (Decrease volume) or right (Increase volume) earbud twice.
Play Next : Touch the left or right earbud three times.

NOTE: On the LG TONE Free app, you can switch the operation mode through the touchpad settings.

Listening to the ambient sound

Listening to ambient sound

Touch and hold the left or right earbud to hear the ambient sound.

You can adjust the intensity of the ambient sound in the LG TONE Free app.

The Listen to the Ambient Sound function works only when the product is on hold or playing music.

While using the listen to the ambient sound function, the battery discharges faster than usual.

When the Listen to the Ambient Sound mode is enabled, you may hear the ambient sound become loud suddenly.

Battery Status

If earbuds are mounted in the charging case, the earbuds' battery status is displayed.

Otherwise, the charging case's battery status is displayed.

If the earbuds are mounted in the charging case while plugged in, the UVnano process will commence for ten minutes.

Once this process is complete, the charging case's battery status will be displayed.

Battery Status

Indicator Light Battery Status
Red Below 20% battery
Violet Between 20% and 80% battery
Blue Above 80% battery

NOTE: When the charging case lid is closed, charging case battery status is displayed. If the charging case has no remaining charge, there will be no display and it cannot function. We recommend you keep the charging case charged at all times as the earbuds are not able to be turned on and turned off independently.

How to charge

Wired Charging

Wired Charging

When the charging cable is connected, the charging status is displayed in the charging case.


  • The earbuds and the charging case are charged at the same time.
  • The charging port on the charging case cannot be used to supply power to mobile phones, etc.

Wireless Charging

Wireless Charging

Align the bottom center of the charging case with the center of the wireless charger.

NOTE: The wireless charger is not provided. HBS-FN4 does not support wireless charging. The wireless charging function may not work in some wireless chargers. Wireless charging feature charges at a slower rate due to less power being transmitted to the charging case.

UVnano Description


UV-C LED process operates for ten minutes and begins when charging case (with earbuds) is plugged in.

UV-C LED does not operate while device is charging wirelessly such as on a pad or third party wireless charging device (this only applies to HBS-FN6).

  • Independent testing shows the UVnano charging case kills 99.9% of bacteria (Staphylococcus aureus and Escherichia coli) on the speaker mesh of the earbuds in ten minutes while charging. The UV-C LED function works only when the charging case is connected to the power cable.
  • For best result, it is recommended that the full 10 minutes of UV-C LED operation be performed while charging.


  • The status indicator light blinks slowly during the UV-C LED operation.
  • The light will slowly illuminate on and off until the UV-C LED function is complete (10 minutes). Once completed, the indicator light will switch back to the always-on battery indicator, see "Battery Status".
  • HBS-FN4 does not have a UV-C LED and mood light.
  • Performance may vary based on usage conditions.
  • A white product may slightly differ in the color of the UV-C LED contact area, but there is no problem with the product performance.
  • UV-C LED does not operate while charging wirelessly.

  • Be aware that the temperature of the earbuds may rise while the UV-C LED is operating.
  • Avoid direct eye and skin exposure to UV light.
  • Keep out of reach of children.

Out of Range

If the device connected to the product is out of effective communication range, the communication signal becomes weak and the communication is lost. The effective communication range may vary depending on surrounding and other conditions.

If the device comes back within effective communication range, the product automatically reconnects to the device. If the device is not automatically reconnected, touch the left or right earbud once to connect them.


If you install the "LG TONE Free" app, you can use Check Earbud Battery, Voice Alert, Change Equalizer Mode, Check Last Connected Location Information, and Find My Earbuds functions. Check out the app for more details.

To install the "LG TONE Free" app, search LG TONE Free in the Google Play Store or App Store or scan the QR code below.

It supports Android 5.0 or higher and iOS 11 or higher.

Google Play

App Store


Problem Solution

The power does not turn on

Check the battery level and charge it.

If unable to make a call with earbuds

If the mobile phone does not support headset and hands-free functions, you cannot use the calling features.
Check the battery level and charge it.

If unable to register earbuds to mobile phone

Check whether earbuds are turned on.
Check if the charging case of earbuds are in search mode.
  • Press the pairing button on the charging case to switch to search mode.

If you replaced the earbuds or there is a problem with the operation

Put the earbuds in the charging case and, with the case open, press the pairing button for 10 seconds or more.
  • The factory reset proceeds while the status indicator on the charging case flashes red.
    Please reconnect the device after factory reset.

Specifications and Features

Item Comments
Bluetooth Specifications V 5.0 (Headset/Hands-Free/A2DP/AVRCP)
Battery Earbud: 3.7 V / 55 mAh, Lithium-ion
Charging case: 3.7 V / 390 mAh, Lithium-ion
Talk Time (Earbuds / With Charging case) Up to 5 / 15 hours*
Music Play Time (Earbuds / With Charging case) Up to 6 / 18 hours*
Charging Time Earbud: within an hour / Charging case: within 2 hours
Fast Charging: 5 min charge for up to 60 min playtime
※ When charging wired at room temperature
Rated Input Voltage Earbud: DC 5 V, 110 mA
Charging case: DC 5 V, 500 mA
Operating Temperature 0°C (+32°F) ~ +35°C (+95°F)
Dimensions (mm) / Weight (g) Earbud: 16.1 mm (W) X 32.65 mm (L) X 25.0mm (H) / 5.4 g (One earbud)
Charging case: 54.5 mm (W) X 54.5 mm (L) X 27.5 mm (H) / 39 g
Frequency range 2402 MHz to 2480 MHz
Output power (Max.) 10 dBm

*Duration of use may vary depending on the connected mobile device, features being used, settings, signal strength, operating temperature, frequency band, and other methods of use.
Fast charging feature does not apply when charging case is placed on wireless charging device such as a pad.
Wireless charging feature charges at a slower rate due to less power being transmitted to the charging case.

Bluetooth® is a registered trademark of Bluetooth SIG, Inc. worldwide.

Android, Google Play, the Google Play logo, and other related marks and logos are trademarks of Google LLC.

Additional Information

  1. Radio frequency exposure
    This Bluetooth LG Stereo Headset is a radio transmitter and receiver. When in operation it communicates with a Bluetooth equipped mobile device by receiving and transmitting radio frequency (RF) electromagnetic fields (microwaves) in the frequency range 2402 to 2480 MHz. Your Bluetooth headset is designed to operate in compliance with the RF exposure guidelines and limits set by national authorities and international health agencies when used with any compatible LG Electronics mobile phone.
  2. Bluetooth Connection Precautions
    The following environments affect the range and reception of Bluetooth signals:
    • When walls, metal, human bodies, or other obstacles exist between the Bluetooth device and the connected device
    • When equipment that uses 2.4 GHz frequency signals (Wireless LANs, wireless phones, microwave ovens, etc.) is placed near the devices being used
    • When using a Bluetooth device (TV, laptop, etc.) other than the mobile phone, the sound quality may be affected by the specifications and performance of the device
  3. Potentially explosive atmosphere
    Turn off your electronic device when in any area with a potentially explosive atmosphere. It is rare, but your electronic device could generate sparks. Sparks in such areas could cause an explosion or fire resulting in bodily injury or even death. Areas with a potentially explosive atmosphere are often, but not always, clearly marked.
  4. Battery information
    A rechargeable battery has a long service life if treated properly. A new battery or one that has not been used for a long period of time could have reduced capacity the first few times it is used. Do not expose the battery to extreme temperatures, never above +50° or below -10°. For maximum battery capacity, use the battery in room temperature. If the battery is used in low temperatures, the battery capacity will be reduced. The battery can only be charged in temperatures between 0° and +45°.
    Removal of waste batteries and accumulators (Product with embedded battery ONLY)
    • In case this product contains a battery incorporated within the product which cannot be readily removed by end-users, LG recommends that only qualified professionals remove the battery, either for replacement or for recycling at the end of this product's working life. To prevent damage to the product, and for their own safety, users should not attempt to remove the battery and should contact LG Service Helpline, or other independent service providers for advice.
    • Removal of the battery will involve dismantling of the product case, disconnection of the electrical cables/contacts, and careful extraction of the battery cell using specialized tools. If you need the instructions for qualified professionals on how to remove the battery safely, please visit http://www.lge.com/global/sustainability/environment/take-back-recycling.
  5. Recycling the battery in your Bluetooth Headset
    The battery in your Bluetooth Headset must be disposed of properly and should never be placed in municipal waste.

Disposal of waste batteries/accumulators

  1. This symbol may be combined with chemical symbols for mercury(Hg), cadmium(Cd) or lead(Pb) if the battery Contains more that 0.0005% of mercury, 0.002% of cadmium or 0.004% of lead.
  2. All batteries/accumulators should be disposed separately from the municipal waste stream via designated collection facilities appointed by the government or the local authorities.
  3. The correct disposal of Your old batteries/accumulators will help to prevent potential negative consequences for the environment, animal and human health.
  4. For more detailed information about disposal of Your old batteries/accumulators, please contact Your city office, waste disposal service or the shop where You purchased the product. (http://www.lg.com/global/sustainability/environment/take-back-recycling/global-network-europe)

Important Safety Information

Avoiding hearing damage

Permanent hearing loss may occur if you use your Headset at a high volume. Set the volume to a safe level. You can adapt over time to a higher volume of sound that may sound normal but can be damaging to your hearing.

If you experience ringing in your ears or muffled speech, stop listening and have your hearing checked. The louder the volume, the less time is required before your hearing could be affected. Hearing experts suggest that to protect your hearing:

  • Limit the amount of time you use Headset at high volume.
  • Avoid turning up the volume to block out noisy surroundings.
  • Turn the volume down if you can't hear people speaking near you.

Please refer to your handset user guide for more information on how to adjust listening levels on your handset.

Using headsets safely

Use of Headset to listen to music while operating a vehicle is not recommended and is illegal in some areas. Be careful and attentive while driving. Stop using this device if you find it disruptive or distracting while operating any type of vehicle or performing any other activity that requires your full attention.

Open Source Software Notice Information

To obtain the source code under GPL, LGPL, MPL, and other open source licenses, that is contained in this product, please visit http://opensource.lge.com.

In addition to the source code, all referred license terms, warranty disclaimers and copyright notices are available for download.

LG Electronics will also provide open source code to you on CD-ROM for a charge covering the cost of performing such distribution (such as the cost of media, shipping, and handling) upon email request to opensource@lge.com.

This offer is valid for a period of three years after our last shipment of this product. This offer is valid to anyone in receipt of this information.






Rev 2.0 AS

Copyright © 2020 - 2021 LG Electronics Inc. All rights reserved.


LG Tone Free (HBS-FN6) - Review Video

Documents / Resources


Download manual

Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.

Download LG TONE Free HBS-FN6 / HBS-FN4 Bluetooth Headset Manual


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