LG TONE-T90S Wireless Bluetooth Earbuds Owner’s Manual

Safety Precautions

Safety Notices and Warnings

The following “Safety Precautions” are to prevent unexpected dangers or damages, so be sure to read them thoroughly. Safety Precautions’ are divided intoWarning’ and `Caution’. . WARNING: Failure to follow the instructions may result in serious injury or death. > Caution: Failure to follow the instructions may result in minor injury or product damage.

. Warning

· Do not drop the product from a high place.
· Make sure there is no 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.
· Earbuds tested under controlled laboratory conditions with an IPX4 rating. Resistant to splashed water. Dry before using. Do not charge while wet. Case has not been tested for IPX4.

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Caution

· Do not disassemble, adjust, or repair the product.
· Do not place the product near excessive heat or flammable material.
· The product may be damaged if an incompatible charger is used.
· Keep small components of the product away from infants or children.
· Make sure that foreign objects do not enter the charger’s connectors (Case charging port and power plug). Foreign objects in the charger’s connectors may result in fire or electric shock.
· If you have a medical device implanted, contact your doctor before using this device.
· For your safety, do not remove the battery incorporated in the product.
· This product has a built-in battery, and the battery cannot be removed or replaced.
· 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 discard the battery arbitrarily. Follow the local procedure for discarding batteries.
· In order to prevent unnecessary energy consumption, disconnect the device when fully charged. Always use an easily accessible power outlet for charging your device.
· 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.

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Caution

· 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, may 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 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.

Precautions when Using the Product
Wipe the product clean if it has been exposed to a lot of sweat. Keep the area around the earphones clean. If you wear earphones for a long time, it may cause pain, and if the moisture in the ears remains long, it may cause skin trouble.
Prevention of product misuse
To prevent misuse of the product, please be sure to check the contents below.
Precautions for using the product
· You cannot charge external devices with the USB port. · When moving the product, pull out the power cord and all cables connected to the product.
– Otherwise, it may cause a fire or electric shock. · Do not open or close the cover of the charging case with excessive force. · Do not mount the earbuds on the charging case with the left and right sides reversed.
– If you mount the earbuds reversed and close the cover of the charging case forcefully, it may result in a product breakdown.
· Make sure that water or any other liquid does not get into the charging case. – If liquid gets into the charging case, it may cause a breakdown.
· Be careful not to insert or touch foreign substances into the charging port.

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Things to Check before Reporting Malfunction

Troubleshooting

If you experience the following symptoms while using the product, please check them again. They may not be malfunctions.

Symptom If the power does not turn on If a call cannot be made with the earbuds
If you cannot register the earbuds into the smartphone
If you have replaced the earbuds or have problems with operation (factory reset).

Cause and Solution
· Check the battery level and charge it.
· If your smartphone does not support the hands-free function, you cannot use the call function.
· Check the battery level and charge it.
· Check whether power is turned on by opening the cover of the charging case.
· Check that the earbuds are switched to search mode. – If you touch and hold the touchpad on the left or right side of the earbuds for 3 to 5 seconds with the earbuds in the charging case, it is switched to search mode.
· Check whether Plug and Wireless mode switch is turned on.
· Touch and hold the left or right touchpad of the earbuds for more than 10 seconds with the earbuds in the charging case. – The battery status indicator of the charging case blinks red and the factory reset progresses. Please reconnect the earbuds after factory reset.

*You cannot use the factory reset and discovery mode in Plug and Wireless mode.

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Appendix

Product Specifications

General Bluetooth Specifications Battery Music Play Time Earbuds & With Charging case
Charging time
Rated Input Voltage

Description
V 5.4 (HFP/A2DP/AVRCP)
Earbud: 3.85 V / 51 mAh, Lithium-ion Charging case: 3.85 V / 475 mAh, Lithium- ion
ANC Off: Up to 9 & Up to 36 hours ANC On: Up to 5 & Up to 20 hours
Earbud: within an hour Charging case: within 2 hours 30 minutes Fast Charging: 5 min charge for up to 60 min playtime · When charging wired at room temperature Earbud: 5 V 0, 120 mA Charging case: 5 V 0, 650 mA

*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.

Operating Temperature
Operating Humidity
Dimensions (mm) / Weight (g)
Frequency range

0 °C ~ +40 °C
5 % ~ 60 % 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 2402 MHz to 2480 MHz

*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.

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Safety Information
Prevention of Hearing Loss
If the volume of the headset is too high, you can experience permanent hearing loss. Set the volume to a safe level. It may sound normal, but if you often listen to highpitch sounds that can damage your hearing, your ears get used to it over time. If you feel ringing in your ears or hear faint voice, stop listening and get a hearing test. The louder the volume, the faster your hearing can be damaged. Experts suggest you to do the followings to protect your hearing. · Limit the time for using the headset with the high volume. · Avoid the habit to turn up the volume not to hear loud noises around you. · If you cannot hear people nearby, turn the volume down. For how to set the maximum volume limit of the connection device, refer to the user manual provided with the connection device.
Additional Information
The Bluetooth® word mark and logos are registered trademarks owned by the Bluetooth SIG, Inc. and any use of such marks by LG Electronics is under license. Other trademarks and trade names are those of their respective owners. Android, Google Play, the Google Play logo, and other related marks and logos are trademarks of Google LLC.
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.
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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.
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°C or below -10°C. For maximum battery capacity, use the battery at 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°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.
· Remove and immediately recycle or dispose of used batteries according to local regulations and keep away from children. Do NOT dispose of batteries in household trash or incinerate.
· Even used batteries may cause severe injury or death. · Call a local poison control center for treatment information. · The compatible battery type is only 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 (manufacturer’s specified temperature
rating) or incinerate. Doing so may result in injury due to venting, leakage or explosion resulting in chemical burns. · The product contains non- replaceable batteries.
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Registered Trademarks and Licenses
All trademarks and trade names are owned by their respective owners.
“Made for iPhone” mean that an electronic accessory has been designed to connect specifically to iPhone, respectively, and has been certified by the developer to meet Apple performance standards. Apple is not responsible for the operation of this device or its compliance with safety and regulatory standards. Please note that the use of this accessory with iPhone may affect wireless performance.
Dolby, Dolby Atmos, and the double-D symbol are registered trademarks of Dolby Laboratories Licensing Corporation. Manufactured under license from Dolby Laboratories. Confidential unpublished works. Copyright © 2012­2020 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.
aptX is a trademark of Qualcomm Technologies International, Ltd., registered in the United States and other countries. Symbols
0 Direct current (DC) CAUTION Instructions Coin / button cell battery
The spelling errors or inaccurate contents in this user manual are subject to change without prior notice by LG Electronics. The output level shall automatically return to an output level not exceeding RS1 when the power is switched off.
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Cleaning Guide

How to clean the ear gel and multi-function foam

If the ear gel or multi-function foam is clogged, the sound or ANC performance may be reduced.
You must clean the ear gel and multi-function foam periodically to ensure the best performance of your earbuds.

Earbuds A Speaker mesh

Multi-function foam
Ear gel
Please follow these steps to clean the ear gel and multi-function foam: a Separate the ear gel from the earbuds. b Separate the multi-function foam from the ear gel. c Remove any residue (earwax, sebum etc.) from the ear gel and multi-function foam using lukewarm
water. If the multi-function foam is damaged, use the extra multi-function foam provided. d Put the multi-function foam into the ear gel and reassemble into your earbuds. Ensure that any water has dried completely before reassembling.

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