Connecting with Bluetooth for Use
Connecting the Smartphone to Earbuds via Bluetooth
- Turn on the Bluetooth function of your smartphone or device.
- Open the charging case with the earbuds attached. The blue battery status indicator blinks. If it does not blink, or to connect a different device, touch and hold the touch pad of either earbud for 3-5 seconds.
- When the Fast Pair connection pop-up appears on your smartphone, touch it to connect. (Requires Android 6.0 or higher, with Bluetooth and location settings enabled.)
- If the pop-up does not appear, select and connect [TONE-T90S] from your smartphone's Bluetooth menu. (For iOS or Android 5.0 or lower)
Note: To connect with another device, repeat these procedures.
Troubleshooting connection: If the earbuds model name displays abnormally on an Android device, change the model name in the device's Bluetooth settings.
Multiple Connections
The LG TONE Free app allows connection and use of two devices simultaneously (e.g., smartphone and PC).
- Activate Multi-Point & Multi-Pairing in the LG TONE Free app.
- Place earbuds in the charging case and follow the connection procedures.
- The existing connected device becomes the “main connection device,” and the newly connected device becomes the “auxiliary connection device.”
- Multi-connection can be managed more conveniently in the detailed Multi-Point & Multi-Pairing settings within the app.
- Audio playback will be from the device that was used last. (In Plug & Wireless mode with a USB-C™ to AUX cable, audio switches to the external device connected to the charging case if the main connection device is not playing or in a call.)
Note:
- When two devices are connected, the main function operates based on the “main connection device.”
- In some media players, audio may not switch automatically when content is played.
Automatic Reconnection
Opening the charging case automatically connects the earbuds to the last connected device. If the device is not found, it enters connectable mode.
If automatic reconnection fails, search for the earbuds on the device and connect manually.
Listening to Sound with Earbuds
Wearing Earbuds
- Remove the earbuds from the charging case by bending the inside outwards, then wear them snugly in your ears.
Note: Using an ear gel that fits your ears improves Active Noise Cancellation (ANC) performance and provides richer sound quality.
- Properly worn earbuds will produce a notification sound.
* To replace the ear gel: Align the ear gel's hole with the earbud's protrusion and fasten. Ensure the multi-function foam is securely inserted into the inner part of the ear gel.
Earbuds components:
Listening to Music
| How to Use |
Function |
| ● : Touch once |
Play/Stop |
| ● ● : Touch twice |
Volume Down (Left earbud) / Volume Up (Right earbud) |
| ● ● ● : Touch three times |
Play the next song |
Note: Music control functions can be customized in the LG TONE Free app's touchpad settings.
Receiving Phone Call
| How to Use |
Function |
| ● : Touch once |
Answer Call |
| ● ● : Touch twice |
End Call |
| ● ● ● : Touch and hold |
Reject call |
Note:
- When making a call from your smartphone, it connects automatically to the headset.
- Touching the left or right earbud once during a call switches to standby, allowing you to receive incoming calls. If a call is on hold, you can end the current call on your smartphone. (Functionality may vary based on smartphone settings.)
Listening to Ambient Sound/Active Noise Cancellation (ANC)
Listening to ambient sound
This function allows you to control the amount of external sound you hear.
Active noise cancellation (ANC)
The ANC function blocks external sounds, ideal for listening to music or watching videos without disturbance.
| How to Use |
Function |
| ● : Touch and hold |
Switch between Active Noise Cancellation (ANC) and Listening to Ambient Sound. |
Additional ANC Features:
- Listening mode and conversation mode can be set in the LG TONE Free app.
- Using ANC or Ambient Sound functions reduces battery life.
- These functions operate when the earbuds are in standby, listening to music, or during a call.
- Both earbuds must be worn for ANC and Ambient Sound functions to work.
- ANC stands for Active Noise Cancellation.
Caution: When ambient sound mode is active, loud ambient sounds may be heard suddenly. Exercise caution for safety when using ANC outdoors.
Charging
Charging by Wire
Connect the USB Type-C™ Charging and Data cable. The charging status will be displayed on the charging case.
Note:
- The earbuds and charging case charge simultaneously.
- The charging case's charging port does not support power supply to other devices like smartphones.
Charging Wirelessly
Place the charging case on the center of a wireless charger.
Note:
- A wireless charger is not provided.
- Wireless charging may not operate with some wireless chargers.
- Wireless charging can take a longer time.
- The UVnano LED operates for 10 minutes when charging the device with earbuds attached and the cover closed.
Description on UVnano
The charging case has a built-in UVnano LED to keep the earbuds clean. The UVnano LED operates for 10 minutes when charging the device with earbuds attached and the cover closed.
* UVnano is a compound word of UV and nanometer, a unit of UV.
Note:
- The UVnano indicator is blue during UVnano LED operation.
- The UVnano charging case removes up to 99.9% of harmful germs from ear gels.
- The white product may show a different color on the UVnano LED contact part, but this does not affect performance.
Caution: The temperature of the earbuds may increase while the UVnano LED is operating.
Checking Battery Status
When the charging case is opened, the battery status of the earbuds is displayed. When the earbuds are not attached, the charging case's battery status is displayed.
Battery level state (charger not connected):
| Battery status indicator |
Battery level state |
| Red |
20% or less |
| Yellow |
20% - 80% |
| Green |
80% or higher |
Charging status (charger connected):
| Battery status indicator |
Charging status |
| Red |
Charging |
| Green |
Fully charged |
Note:
- Closing the charging case displays the charging case's battery status.
- If the charging case battery is completely depleted, the earbuds cannot be turned on or off. Charge the charging case.
Battery status indicator summary:
| Status |
Operation |
| Bluetooth® search mode |
The blue battery status indicator blinks. |
| Battery 20% or less |
The red battery status indicator turns on and off. |
| Battery 20% ~ 80% |
The yellow battery status indicator turns on and off. |
| Battery 80% or higher |
The green battery status indicator turns on and off. |
| When a charging error occurs |
The red battery status indicator blinks. |
| While battery is charged (charger connected) |
The red battery status indicator turns on. |
| Battery charging completed (charger connected) |
The green battery status indicator turns on. |
Safety Precautions
Safety Notices and Warnings
Read the following safety precautions carefully to prevent unexpected dangers or damages.
'Safety Precautions' are divided into ‘Warning' and 'Caution'.
WARNING: Failure to follow instructions may result in serious injury or death.
Caution: Failure to follow instructions may result in minor injury or product damage.
Warning
- Do not drop the product from a high place.
- Avoid contact with alcohol or benzene.
- Do not store the product in wet or dusty conditions.
- Do not place heavy objects on the product.
- Earbuds are tested under controlled laboratory conditions with an IPX4 rating (resistant to splashed water). Dry before use. Do not charge while wet. The case has not been tested for IPX4.
Caution
- Do not disassemble, adjust, or repair the product.
- Do not place the product near excessive heat or flammable materials.
- Using an incompatible charger may damage the product.
- Keep small components away from infants and children.
- Ensure that foreign objects do not enter the charger's connectors (charging port and power plug), as this may cause fire or electric shock.
- If you have an implanted medical device, consult your doctor before using this device.
- For safety, do not remove the built-in battery. It cannot be removed or replaced.
- Attempting to replace the battery arbitrarily or incorrectly may cause it to explode. The lithium-ion battery is a hazardous component.
- Battery replacement by unqualified professionals can damage the device.
- Do not discard batteries arbitrarily. Follow local procedures for battery disposal.
- To prevent unnecessary energy consumption, disconnect the device when fully charged. Use an easily accessible power outlet for charging.
- Risk of fire or explosion if the battery is replaced with an incorrect type.
- Do not store or transport at pressures lower than 11.6 kPa and at altitudes above 15,000 m.
- Replacing the battery with an incorrect type can defeat safeguards.
- Disposing of a battery in fire, a hot oven, or crushing/cutting it may cause an explosion.
- Leaving a battery in extremely high temperatures can cause an explosion or leakage of flammable liquid or gas.
- Exposure to extremely low air pressure may result in an explosion or leakage of flammable liquid or gas.
- Do not carelessly discard old batteries, as this can cause explosion or fire. Dispose of them properly according to country and region regulations.
Precautions when Using the Product
- Wipe the product clean if exposed to sweat.
- Keep the area around the earphones clean.
- Prolonged use of earphones may cause pain. Moisture in the ears can lead to skin trouble.
Prevention of product misuse
Precautions for using the product
- External devices cannot be charged using the USB port.
- When moving the product, unplug the power cord and all connected cables to prevent fire or electric shock.
- Do not open or close the charging case cover with excessive force.
- Do not mount the earbuds on the charging case with the left and right sides reversed. Forcing the earbuds in reversed may result in product breakdown.
- Ensure no water or other liquid enters the charging case. Liquid ingress may cause breakdown.
- Be careful not to insert or touch foreign substances into the charging port.
Appendix
Product Specifications
General
| Power consumption |
Off: 0.3 W |
| Bluetooth Specifications |
V 5.4 (HFP/A2DP/AVRCP) |
| Battery |
Earbud: 3.85 V / 51 mAh, Lithium-ion
Charging case: 3.85 V / 475 mAh, Lithium-ion |
| Music Play Time (Earbuds & With Charging case) |
ANC Off: Up to 9 hours (earbuds) & Up to 36 hours (with case)
ANC On: Up to 5 hours (earbuds) & Up to 20 hours (with case) |
| Charging time |
Earbud: within an hour
Charging case: within 2 hours 30 minutes*
Fast Charging: 5 min charge for up to 60 min playtime* |
| Rated Input Voltage |
Earbud: 5 V ⎓, 120 mA
Charging case: 5 V ⎓, 650 mA |
| Operating Temperature |
0 °C ~ +40 °C |
| Operating Humidity |
5%~60% |
| Dimensions (mm) / Weight (g) |
Earbud: 21.6 mm (W) X 21.9 mm (L) X 24.2 mm (H) / 5.7 g (One earbud)
Charging case: 65.0 mm (W) X 29.9 mm (L) X 32.6 mm (H) / 43.0 g |
| Frequency range |
2402 MHz to 2480 MHz |
*The use time may vary depending on the connected smartphone or use functions, settings, signal strength, operation temperature, using frequency band, and other use methods.
*Duration of use and charging time may vary depending on the connected mobile device or charging adapter, features being used, settings, signal strength, operating temperature, frequency band, and other methods of use.
Safety Information
Prevention of Hearing Loss
Listening at high volumes can cause permanent hearing loss. Set the volume to a safe level. Even if it sounds normal, prolonged exposure to high-pitch sounds can damage your hearing over time. If you experience ringing in your ears or muffled hearing, stop listening and get a hearing test. Higher volume levels cause faster hearing damage.
Protecting Your Hearing:
- Limit the time you use the headset at high volumes.
- Avoid turning up the volume to drown out surrounding noise.
- If you cannot hear people nearby, lower the volume.
- Refer to your connection device's user manual for setting the maximum volume limit.
Additional Information
The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. LG Electronics uses these marks under license. Other trademarks and trade names belong to their respective owners.
Android, Google Play, and the Google Play logo are trademarks of Google LLC.
Bluetooth®
Radio frequency exposure
This Bluetooth LG Stereo Headset is a radio transmitter and receiver that communicates with Bluetooth-equipped mobile devices. It transmits and receives radio frequency (RF) electromagnetic fields (microwaves) in the 2402 to 2480 MHz range.
Bluetooth connection precautions
- Bluetooth signal range and reception can be affected by:
- Obstacles such as walls, metal, human bodies, or other objects between the device and the connected device.
- Equipment using 2.4 GHz frequency signals (wireless LANs, wireless phones, microwave ovens, etc.) placed near the devices.
- Using Bluetooth devices (TVs, laptops, etc.) other than mobile phones may affect sound quality based on their specifications and performance.
Battery Information
Rechargeable batteries have a long service life when properly maintained. New batteries or batteries not used for a long time may have reduced capacity initially. Avoid extreme temperatures: do not expose the battery to temperatures above +50°C or below -10°C. For maximum capacity, use the battery at room temperature. Battery capacity decreases in low temperatures. Charging is optimal between 0°C and +45°C.
[For coin battery application]
WARNING
- INGESTION HAZARD: This product contains a button cell or coin battery.
- DEATH or serious injury can occur if ingested.
- A swallowed button cell or coin battery can cause Internal Chemical Burns in as little as 2 hours.
- KEEP new and used batteries OUT OF REACH of CHILDREN.
- Seek immediate medical attention if a battery is suspected to be swallowed or inserted inside any part of the body.
Battery Disposal:
- Remove and recycle or dispose of used batteries according to local regulations. Keep away from children. Do NOT dispose of batteries in household trash or incinerate.
- Even used batteries can cause severe injury or death.
- Contact a local poison control center for treatment information.
- The compatible battery type is VDL 1240H.
- The nominal battery voltage is 3.85 V.
- Non-rechargeable batteries are not to be recharged.
- Do not force discharge, recharge, disassemble, heat above specified temperature limits, or incinerate. Doing so may result in injury due to venting, leakage, or explosion.
- The product contains non-replaceable batteries.
Registered Trademarks and Licenses
All trademarks and trade names are owned by their respective owners.
Made for iPhone: Indicates an electronic accessory designed specifically for iPhone, certified by the developer to meet Apple performance standards. Apple is not responsible for the device's operation or compliance with safety and regulatory standards. Use with iPhone may affect wireless performance.
Dolby Atmos: Dolby, Dolby Atmos, and the double-D symbol are registered trademarks of Dolby Laboratories Licensing Corporation. Manufactured under license. Confidential unpublished works. Copyright © 2012–2020 Dolby Laboratories. All rights reserved.
Snapdragon and Qualcomm branded products are products of Qualcomm Technologies, Inc. and/or its subsidiaries. Qualcomm, Snapdragon, and Snapdragon Sound are trademarks or registered trademarks of Qualcomm Incorporated.
Qualcomm® aptX™ Adaptive: aptX is a trademark of Qualcomm Technologies International, Ltd., registered in the United States and other countries.
Symbols
- Direct current (DC)
- CAUTION
- Instructions
- Coin / button cell battery
Spelling errors or inaccurate contents in this user manual are subject to change without prior notice by LG Electronics.
The output level will automatically return to a level not exceeding RS1 when the power is switched off.
