Boltune BT-BH020 Truly Wireless Bluetooth In-Ear Headphone User Manual

1. Introduction

Thank you for choosing the Boltune BT-BH020 Truly Wireless Bluetooth In-Ear Headphones. This manual provides detailed instructions on how to set up, operate, and maintain your new headphones. Please read this manual thoroughly before use to ensure optimal performance and longevity of your device.

2. Package Contents

Verify that all items listed below are present in your package. If any item is missing or damaged, please contact customer support.

1 x Charging Case
2 x Earbuds (Left and Right)
6 x Eartips (various sizes)
1 x USB Type-C Charging Cable
1 x User Manual (this document)

Boltune BT-BH020 Package Contents — **Figure 2.1: Package Contents.** This image displays the Boltune BT-BH020 charging case, two earbuds, six eartips of different sizes, and a USB Type-C charging cable.

3. Product Overview

The Boltune BT-BH020 earbuds feature a compact design with advanced Bluetooth 5.2 technology for stable connectivity and clear audio.

Boltune BT-BH020 Earbuds and Charging Case — **Figure 3.1: Earbuds and Charging Case.** This image shows the Boltune BT-BH020 truly wireless earbuds placed inside their open charging case, with one earbud also shown separately for detail.

Advanced Bluetooth V5.2 Technology — **Figure 3.2: Advanced Bluetooth Technology.** This image highlights the internal components of an earbud, emphasizing the integration of Bluetooth V5.2 for enhanced performance.

4. Setup

4.1 Charging the Earbuds and Case

Before first use, fully charge the earbuds and the charging case.

Place the earbuds into the charging case.
Connect the USB Type-C charging cable to the charging port on the case and to a power source.
The indicator lights on the case will show the charging status.

A full charge provides over 40 hours of total battery life with the charging case, and approximately 6 hours of playtime per single earbud charge. The Type-C port supports quick charging.

Boltune BT-BH020 Battery Life and Charging — **Figure 4.1: Battery Life and Charging.** This image illustrates the battery performance of the Boltune BT-BH020, highlighting over 40 hours of total battery life, 6 hours of playtime per charge, and Type-C quick charging.

4.2 Pairing with a Bluetooth Device

The BT-BH020 features one-step pairing technology for convenience.

Open the charging case. The earbuds will automatically power on and enter pairing mode.
On your device (e.g., smartphone, tablet), enable Bluetooth and search for available devices.
Select "BT-BH020" from the list of found devices to connect.
Once connected, you will hear an audio prompt, and the earbuds will be ready for use.

The Bluetooth V5.2 technology ensures a stable connection with a range of up to 50 feet, providing faster transmission speed and reliable connectivity without signal loss.

Boltune BT-BH020 One-Step Pairing — **Figure 4.2: One-Step Pairing.** This image demonstrates the one-step pairing process, showing a smartphone screen with "BT-BH020" listed as a connected Bluetooth device after opening the earbud charging case.

5. Operating Instructions

5.1 Touch Controls

The BT-BH020 earbuds feature touch controls for managing music playback and calls. Specific touch gestures for functions like play/pause, skip track, answer/end call, and activate voice assistant are typically detailed in a quick start guide. Refer to the included quick start guide for a complete list of touch commands.

5.2 Making and Receiving Calls

The earbuds are equipped with a built-in microphone and support call control functions.

Answering a Call: Tap the touch control area on either earbud once.
Ending a Call: Tap the touch control area on either earbud once during a call.
Rejecting a Call: Press and hold the touch control area on either earbud for approximately 2 seconds.

Dual microphones with uplink noise cancellation and passive noise isolation ensure clear conversations.

Boltune BT-BH020 Ultra-Clear Calls — **Figure 5.1: Ultra-Clear Calls.** This image depicts a person using the earbud, illustrating the dual microphones, uplink noise cancellation, and passive noise isolation features for clear call quality.

5.3 Music Playback

Enjoy high-quality audio playback with your BT-BH020 earbuds.

Play/Pause: Tap the touch control area on either earbud once.
Next Track: Double-tap the right earbud.
Previous Track: Double-tap the left earbud.

The ergonomic design ensures a secure and comfortable fit for extended listening sessions.

Boltune BT-BH020 Secure Fit — **Figure 5.2: Secure Fit.** This image shows a person wearing the earbud while driving, with an inset diagram illustrating the ergonomic design for a secure and comfortable fit.

6. Maintenance

Proper maintenance ensures the longevity and optimal performance of your Boltune BT-BH020 earbuds.

Cleaning: Regularly clean the earbuds and charging case with a soft, dry, lint-free cloth. Do not use harsh chemicals or abrasive materials.
Water Resistance: The earbuds are rated IPX6 waterproof, meaning they are protected against high-pressure water jets. However, they are not designed for submersion. Avoid prolonged exposure to water.
Storage: When not in use, store the earbuds in their charging case to protect them from dust and damage. Store in a cool, dry place.
Battery Care: To preserve battery life, avoid fully discharging the earbuds and charging case frequently. Charge them regularly, even if not in constant use.

7. Troubleshooting

If you encounter issues with your BT-BH020 earbuds, refer to the following common solutions.

Problem	Possible Solution
Earbuds not pairing	Ensure earbuds are charged. Place earbuds back in the case, close, then open again to re-enter pairing mode. Turn off and on Bluetooth on your device. Forget "BT-BH020" from your device's Bluetooth list and try pairing again.
No sound from one earbud	Ensure both earbuds are charged. Try resetting the earbuds (refer to the quick start guide for specific reset instructions). Reconnect the earbuds to your device.
Poor sound quality	Ensure earbuds are clean and free of debris. Check the fit of the eartips; try different sizes for a better seal. Move closer to your connected device to avoid interference.
Charging case not charging	Ensure the USB Type-C cable is securely connected. Try a different charging cable or power adapter. Clean the charging port for any obstructions.

8. Specifications

Feature	Detail
Model Name	BT-BH020
Connectivity Technology	Wireless (Bluetooth)
Bluetooth Version	V5.2
Water Resistance Level	IPX6 (Waterproof)
Control Method	Touch
Microphone Format	Built-In (Dual Microphones with Uplink Noise Cancellation)
Playtime per Charge	Approx. 6 hours
Total Playtime (with Charging Case)	Over 40 hours
Charging Port	USB Type-C
Item Weight	5.09 g (per earbud)
Product Dimensions	4.19 x 2.31 x 2.31 cm
Material	Plastic
UPC	661094416582, 661094416605

9. Warranty and Support

For warranty information and customer support, please refer to the warranty card included in your package or visit the official Boltune website.

If you have any questions or require assistance, please contact Boltune customer service.

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