Boltune BT-BH020 True Wireless Stereo Earbuds User Guide

Package Contents

• Boltune True Wireless Stereo Earbuds (BT-BH020)
• 8 x Ear Tips (two are equipped on the earbuds)
• 1 x USB-C Charging Cable
• 1 x User Guide
• 1 x Quick Start Guide

Diagram showing the package contents: earbuds, ear tips, charging cable, user guide, and quick start guide.

Product Diagram

Diagram of the earbuds and charging case. Key components are labeled: 1. Multifunction Touch Control, 2. Charging Contacts, 3. LED Indicator, 4. Microphone, 5. Charging Slot, 6. Charging Case, 7. USB-C Charging Port, 8. Charging Indicators, 9. Microphone.

Important Safety Instructions

Hearing Safety

• Do not wear earbuds with high volume for a long time to avoid damaging your hearing.
• Set the earbuds to low volume before you put them on, then increase the volume gradually as per your preference.
• Do not set volume too high to stay aware of your surroundings.
• Please refer to local laws and regulations if you want to answer phone calls via this device during driving.
• For your safety, avoid distraction from music or phone calls when you are driving or doing other activities with potential dangers.

Warning: Please set the volume to proper level to avoid hearing damages.

Caution

• Do not expose this product to high temperatures.
• Do not immerse the earbuds into water or expose them to humidity for a long time.
• Do not clean the product with detergent containing alcohol, ammonia, benzene or abrasives.
• Avoid dropping.
• Place the earbuds back into the charging case when not in use and keep it away from children and pets to avoid choking hazard.
• Unauthorized disassembly of any parts of this product is forbidden, which may cause fire hazard, warranty voidance, and/or property loss.
• Close attention is needed when using near children.
• Keep the charging case away from water, rain or any other liquid.
• Do not use the product in thunderstorm to avoid malfunction or electric shock.
• Always ask a professional technician or authorized personnel for repair.

This product contains lithium battery. Never expose it to excessive heat such as direct sunlight or fire to avoid explosion.

How to Wear

Choose the Right Tips

• Ear tips with different sizes are included in the package; try all sizes and choose the ones fitting you best.

Illustration of various ear tip sizes provided for optimal fit.

Wear the Earbuds

Diagram demonstrating the correct method for wearing the earbuds for a secure and comfortable fit.

Bluetooth Caution

• When the device is connected wirelessly to another device, place the two devices close to each other to achieve their normal functionalities and avoid possible signal interference.
• When using a wireless connection, make sure there are no obstacles between the two devices. Obstacles including walls and fences may shorten the effective range.
• The maximum effective Bluetooth range may vary with the environmental circumstances.

Using Your Earbuds

Charging the Earbuds

1. Put the earbuds into the charging case as per the L (left) and R (right) marks.
2. Cover the lid and charging will start automatically.

Note: Please fully charge the earbuds when using them for the first time. When battery is low, a "Battery low" voice prompt will be heard. Please charge it in time or the earbuds will turn off automatically around 10 minutes later. Charge the earbuds at least once every 3 months when not using for a long time.

Illustrations showing the correct placement of left (L) and right (R) earbuds into the charging case, and the case lid being closed to initiate charging.

Charging the Charging Case

1. Connect the charging port with any USB charging adapter or active computer USB port.
2. The four charging indicators will light up progressively.

Note: Unplug the charging cable (timely) when fully charged.

Diagram showing a USB-C charging cable connected to the charging case and a power source (e.g., USB port).

Power On

Illustration of the charging case lid being opened, signaling the earbuds to power on automatically.

Power Off

Illustration of the earbuds placed inside the charging case with the lid closed, indicating the earbuds are powering off.

Pairing

You can use one earbud or both earbuds as per your preference. Before pairing, please turn off other Bluetooth devices and place the device to be connected close to the earbuds.

Couple Earbuds Mode

1. Uncover the lid to turn on the earbuds; they will connect with each other automatically. Once connected, the LED indicators on both earbuds will flash blue and white alternately, indicating the earbuds are in pairing mode.
2. Turn on the Bluetooth function on your device and search for nearby devices. Find "Boltune BT-BH020" in the searching results, tap on the name to connect.
3. Once connected, the LED indicators on both earbuds will flash blue slowly.

Note: The earbuds can remember the devices paired previously and will attempt to pair with the last connected device. If re-pairing failed, the earbuds will enter pairing mode. It is not recommended to wear the two earbuds on different people. If necessary, please keep the two earbuds close to each other in couple earbuds mode.

Single Earbud Mode

1. Take out one earbud from the charging case, and make sure the other one is placed in the charging case and the lid is covered.
2. It will try to pair with the last paired device first, then enter pairing mode with its LED indicator flashing blue and white alternately if pairing failed.
3. Turn on the Bluetooth function on your device and search for nearby devices. Find "Boltune BT-BH020" in the searching results, tap on the name to connect.
4. Once connected, the LED indicator will flash blue slowly.

Note: If you want to change to couple mode, simply take out the other earbud from the charging case; they will pair with each other automatically.

Clear Pairing List

1. Place both earbuds in the charging case.
2. Press and hold the Multifunction Touch Control of both earbuds for 10 seconds until the LED indicators on both earbuds flash white three times.
3. If you have paired your device with the earbuds before, remove "Boltune BT-BH020" from the Bluetooth device list and pair again.
4. Re-pair with your Bluetooth® device as instructed in the "Pairing" section.

Note: If you want to pair the earbuds with another device when you have already paired them with a device, deactivate the Bluetooth function on the paired device or clear "Boltune BT-BH020" from its Bluetooth list. Restore the earbuds to factory settings as instructed above if pairing failed.

Operation and Functions

Cleaning and Maintenance

• Clean the earbuds and the charging case on a regular basis.
• Use dry and soft cotton cloth to wipe the unit. Note: Do not insert anything into the product.
• Keep away from sharp objects to avoid scratches.
• Put the unit in a dry and shady place if it is to be idle for a long time.
• Do not clean the product with detergent or chemicals.

Troubleshooting

Warranty and Service

If any problems occur, please contact the Boltune Customer Care Centre via the contact information listed in this User Guide.

Compliance and Legal Information

Bluetooth® Trademarks

The Bluetooth word mark and logos are registered trademarks owned by the Bluetooth SIG, Inc. and any use of such marks by Sunvalleytek International Inc. is under license. Other trademarks and trade names are those of their respective owners.

FCC Compliance

NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: - Reorient or relocate the receiving antenna. - Increase the separation between the equipment and receiver. - Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. - Consult the dealer or an experienced radio/TV technician for help.

Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

WEEE Compliance

Correct Disposal of This Product (Waste Electrical & Electronic Equipment) (Applicable in countries with separate collection systems) This marking on the product, accessories or literature indicates that the product and its electronic accessories should not be disposed of with other household waste at the end of their working life. To prevent possible harm to the environment or human health from uncontrolled waste disposal, please separate these items from other types of waste and recycle them responsibly to promote the sustainable reuse of material resources. Household users should contact either the retailer where they purchased this product, or their local government office, for details of where and how they can take these items for environmentally safe recycling. Business users should contact their supplier and check the terms and conditions of the purchase contract. This product and its electronic accessories should not be mixed with other commercial wastes for disposal.