Introduction
Thank you for choosing the Boytond YYK-526 Bluetooth 5.4 Earhook Headset. This manual provides detailed instructions for setting up, operating, and maintaining your new headset. Please read this manual thoroughly before use to ensure optimal performance and longevity of your device.
The YYK-526 features advanced Bluetooth 5.4 technology for stable connections, CVC8.0 noise cancellation for clear calls, a long-lasting battery with a portable charging case, and a comfortable earhook design suitable for various activities including remote work, driving, and online meetings.
Package Contents
Please check the package for the following items:
- Boytond YYK-526 Bluetooth Earhook Headset (1 unit)
- 500mAh Charging Case
- USB Charging Cable
- User Manual
- USB Bluetooth Adapter (for PC/Tablet compatibility)
- Ear tips (S/M/L sizes)

Image: Contents of the Boytond YYK-526 headset package, including the earhook headset, charging case, USB cable, and user manual.
Product Overview
The Boytond YYK-526 headset is designed for comfort and functionality. It features a multi-function button (MFB) for easy control of calls and music, and a flexible earhook for a secure fit.

Image: The Boytond YYK-526 earhook headset shown alongside its portable charging case and a USB adapter.
Key Features:
- Bluetooth 5.4: Ensures stable, high-speed, and low-power consumption connectivity.
- CVC8.0 Noise Cancellation: Enhances call clarity by reducing ambient noise.
- Mute Function: Allows you to mute your microphone during calls for privacy.
- Long Battery Life: Up to 12 hours of talk/music time per charge, with the 500mAh charging case providing up to 100 hours of total usage.
- Automatic Pairing: Connects automatically to previously paired devices upon power-on.
- One-Button Control: Simplifies operations for music playback, call management, and voice assistant activation.
- Ergonomic Earhook Design: Provides a secure and comfortable fit for extended wear.
- Left/Right Ear Compatibility: The earhook and microphone can be rotated 180° and 270° respectively for use on either ear.

Image: Diagrams illustrating the 180-degree rotation of the earhook and 270-degree rotation of the microphone for left or right ear use.
Setup
1. Charging the Headset and Case
Before first use, fully charge the headset and the charging case.
- Place the headset into the charging case.
- Connect the charging case to a USB power source using the provided USB cable.
- The LED display on the charging case will indicate the battery level. A full charge takes approximately 1.5 hours.

Image: Diagram showing the battery life of the headset (up to 12 hours music/talk time) and the charging case (500mAh, providing multiple recharges for a total of up to 100 hours).
2. Pairing with a Device
The YYK-526 supports automatic pairing after the initial setup.
- First-time Pairing:
- Take the headset out of the charging case. It will automatically enter pairing mode (indicated by a flashing LED).
- On your smartphone, tablet, or computer, enable Bluetooth and search for available devices.
- Select "YYK-526" from the list of devices.
- Once connected, the LED indicator on the headset will stop flashing.
- Automatic Reconnection: After the first successful pairing, the headset will automatically connect to the last paired device when powered on and within range (up to 10 meters without obstacles).
- Using the USB Bluetooth Adapter: For devices without built-in Bluetooth or for enhanced stability, plug the included USB Bluetooth adapter into your computer or tablet. The headset will automatically pair with the adapter.

Image: Illustration of the Boytond YYK-526 headset connecting to a smartphone and a laptop via a USB Bluetooth adapter, highlighting Bluetooth 5.4 and a 10-meter range.

Image: Close-up of a circuit board highlighting the Bluetooth 5.4 chip, emphasizing stable and high-speed connection.
Operating Instructions
The headset features a multi-function button (MFB) for various controls. Specific button functions may vary slightly depending on your connected device.
Power On/Off
- Power On: Take the headset out of the charging case, or press and hold the MFB for approximately 3 seconds.
- Power Off: Place the headset back into the charging case, or press and hold the MFB for approximately 5 seconds.
Call Management
- Answer/End Call: Press the MFB once.
- Reject Call: Press and hold the MFB for approximately 2 seconds.
- Redial Last Number: Double-press the MFB.
- Mute Function: During a call, press the MFB once to mute/unmute your microphone. This prevents the other party from hearing your voice, useful for privacy during confidential discussions.

Image: Depicts the mute function during a call and the activation of Siri/Google Assistant for hands-free operation while driving.
Music Playback
- Play/Pause: Press the MFB once.
- Next Track: Double-press the MFB.
- Previous Track: Triple-press the MFB.
- Volume Control: Volume adjustments are typically controlled via your connected device.
Voice Assistant (Siri/Google Assistant)
- Activate Voice Assistant: Press and hold the MFB for approximately 2 seconds (when not on a call). This will activate your device's voice assistant (e.g., Siri, Google Assistant), allowing for hands-free commands.
Maintenance
- Keep the headset and charging case clean and dry. Wipe with a soft, dry cloth.
- Avoid exposing the device to extreme temperatures, humidity, or corrosive substances.
- Store the headset in its charging case when not in use to protect it and keep it charged.
- Do not attempt to disassemble or repair the device yourself, as this will void the warranty.
- Ensure the charging contacts on both the headset and the case are free from dust and debris for proper charging.
Troubleshooting
| Problem | Solution |
|---|---|
| Headset does not power on. | Ensure the headset is charged. Place it in the charging case or connect the case to power. |
| Cannot pair with device. |
|
| No sound or low volume. |
|
| Call quality is poor. |
|
| Headset disconnects frequently. |
|
Specifications
| Feature | Detail |
|---|---|
| Model Number | YYK-526 |
| Bluetooth Version | 5.4 |
| Ear Placement | Earhook |
| Noise Control | CVC8.0 Noise Cancellation |
| Impedance | 13 Ohms |
| Battery Capacity (Charging Case) | 500mAh |
| Charging Time | Approx. 1.5 hours (for full charge) |
| Talk/Music Playback Time (Headset) | Approx. 10-12 hours |
| Total Playback Time (with Case) | Up to 100 hours |
| Standby Time | Approx. 180 hours |
| Wireless Range | Up to 10 meters (without obstacles) |
| Dimensions (Package) | 14.8 x 7.6 x 2.6 cm |
| Weight (Package) | 90 g |
| Compatibility | Devices with Bluetooth functionality (smartphones, tablets, PCs) |
Warranty and Support
This product is covered by a manufacturer's warranty. For specific warranty terms and conditions, please refer to the documentation included in your package or contact Boytond customer support.
For technical support, troubleshooting assistance, or any inquiries regarding your Boytond YYK-526 headset, please contact our customer service team. Contact information can typically be found on the product packaging or the official Boytond website.
Compliance: This device complies with the technical standards of the Radio Law for wireless equipment.




