Introduction
Thank you for choosing the EUQQ Wireless Bluetooth 5.1 Headset. This manual provides detailed instructions on how to set up, operate, and maintain your new headset. Please read this manual carefully before use to ensure optimal performance and longevity of your device.
This headset features Bluetooth 5.1 connectivity, CVC8.0 noise cancellation with a double microphone for clear hands-free calls, and a comfortable design. It is compatible with various mobile phones, including iPhone, Samsung, and Huawei devices.
Package Contents
- 1 x EUQQ Wireless Bluetooth 5.1 Headset
- 1 x Charging Case
- 1 x USB Charging Cable (Type-C)
- User Manual
Product Overview
Familiarize yourself with the components and controls of your EUQQ headset.

Image: The EUQQ Wireless Bluetooth 5.1 Headset shown alongside its charging case, which features a digital battery display.

Image: A detailed diagram illustrating the multi-function buttons on the headset, including controls for play/pause, answer/hang up, call Siri, volume adjustment, next/last song, mute, and third-party call handover. Also shows the Type-C charging port.

Image: Demonstrates the headset's superb adaptability with two rotatable axes (270° and 360°) for comfortable wear on either ear, along with its lightweight design (0.4oz) and compact dimensions (3.14in length, 2.44in width).
Key Components:
- Ear Hook: Adjustable for secure and comfortable fit.
- Earbud: In-ear component for audio delivery.
- Multi-function Button (MFB): Controls power, play/pause, answer/end calls.
- Volume Buttons: Adjusts volume, navigates tracks.
- Microphone: Dual microphone for clear voice pickup.
- USB-C Charging Port: For charging the headset.
- Charging Case: Stores and charges the headset, with digital display for battery level.
Setup Guide
1. Charging the Headset and Case
Before first use, fully charge the headset and its charging case.
- Connect the USB-C cable to the charging port on the case and to a USB power source.
- Place the headset into the charging case. The digital display on the case will show the charging status.
- A full charge for the headset takes approximately 1.5 hours. The charging case provides multiple charges for the headset.

Image: Illustrates the battery performance: 8 hours music time, 10 hours talk time per charge, 1.5 hours charging time, and 60 hours total talk time with the charging case.
2. Pairing with Your Device
The headset uses Bluetooth 5.1 for a stable and fast connection.
- Power On: Take the headset out of the charging case, or press and hold the Multi-function Button (MFB) for 3 seconds until you hear a voice prompt "Power On" and the LED indicator flashes blue and red, indicating it's in pairing mode.
- Activate Bluetooth: On your mobile phone or other Bluetooth-enabled device, go to the Bluetooth settings and turn Bluetooth on.
- Select Device: Look for "EUQQ 520-2" (or similar name) in the list of available devices and select it.
- Confirm Pairing: Once connected, you will hear a voice prompt "Connected" and the LED indicator will flash blue slowly.
Note: The headset will automatically attempt to reconnect to the last paired device when powered on.
3. Dual Device Connectivity
The EUQQ headset supports connecting to two devices simultaneously.
- Pair the headset with the first device as described above.
- Disable Bluetooth on the first device. The headset will re-enter pairing mode.
- Pair the headset with the second device.
- Re-enable Bluetooth on the first device. The headset should now be connected to both devices.

Image: Depicts the EUQQ headset simultaneously connected to a laptop and a smartphone, illustrating its dual device connectivity feature.
Operating Instructions
Basic Functions:
| Function | Action |
|---|---|
| Power On | Press and hold MFB for 3 seconds. |
| Power Off | Press and hold MFB for 5 seconds. |
| Play/Pause Music | Short press MFB. |
| Answer/End Call | Short press MFB. |
| Reject Call | Press and hold MFB for 2 seconds. |
| Redial Last Number | Double press MFB. |
| Volume Up | Short press Volume + button. |
| Volume Down | Short press Volume - button. |
| Next Track | Long press Volume + button. |
| Previous Track | Long press Volume - button. |
| Activate Voice Assistant (Siri/Google Assistant) | Triple press MFB. |
| Mute/Unmute Microphone | Press and hold the mute button (if available, refer to product overview image). |
Refer to the "Multi-function In One" image in the Product Overview section for visual guidance on button locations.
Maintenance
Proper care and maintenance will extend the life of your headset.
- Cleaning: Use a soft, dry cloth to clean the headset and charging case. Do not use abrasive cleaners or solvents.
- Storage: When not in use, store the headset in its charging case to protect it from dust and damage. Store in a cool, dry place.
- Water Resistance: The headset has an "Impermeable" (Waterproof) rating. However, avoid prolonged exposure to water or submersion. Dry thoroughly if it gets wet.
- Battery Care: To preserve battery life, charge the headset regularly, even if not in frequent use. Avoid fully discharging the battery for extended periods.
Troubleshooting
If you encounter issues with your headset, try the following solutions:
| Problem | Possible Solution |
|---|---|
| Headset won't turn on. | Ensure the headset is charged. Place it in the charging case or connect directly to a power source. |
| Cannot pair with device. |
|
| No sound or low volume. |
|
| Microphone not working. |
|
| Connection drops frequently. |
|
Specifications
| Feature | Detail |
|---|---|
| Model Number | 520-2 |
| Brand | EUQQ |
| Connectivity Technology | Wireless (Bluetooth 5.1) |
| Form Factor | In-Ear |
| Special Features | Microphone included, CVC8.0 Noise Cancellation, Dual Device Connectivity |
| Frequency Range | 20 Hz - 20,000 Hz |
| Water Resistance Level | Waterproof (Impermeable) |
| Battery Type | Lithium-polymer (included) |
| Music Time | Up to 8 hours |
| Talk Time (Per Charge) | Up to 10 hours |
| Charging Time | Approx. 1.5 hours |
| Total Talk Time (with Charging Case) | Up to 60 hours |
| Charging Port | USB-C |
| Compatible Devices | Mobile phones (Android, iPhone, etc.) |
| Material | Plastic |
Warranty and Support
For warranty information and customer support, please refer to the documentation included with your purchase or contact the seller directly.
Seller: figer store
For further assistance, you may visit the product page on Amazon or contact EUQQ customer service if available.
Product ASIN: B09XTK7SDN
Amazon Product Link: https://www.amazon.com.be/EUQQ-Oreillette-Bluetooth-microphone-compatibles/dp/B09XTK7SDN




