Introduction
The soundcore V20i Open-Ear Headphones are designed to provide a comfortable and immersive audio experience while maintaining situational awareness. Featuring adjustable ear hooks, powerful 16mm drivers, customizable LED lights, and IP55 water resistance, these headphones are suitable for various activities, from daily commutes to outdoor sports.

Image: soundcore V20i Open-Ear Headphones and their charging case, showcasing the blue color variant.
What's in the Box
Ensure all components are present upon unboxing:
- soundcore V20i Open-Ear Headphones (Left and Right)
- Charging Case
- USB-C Charging Cable
- User Manual (this document)

Image: A visual representation of the soundcore V20i headphones, charging case, and USB-C cable, indicating the package contents.
Setup
1. Charging
Before first use, fully charge the headphones and the charging case. The charging time for the headphones is approximately 1.5 hours. The case provides extended playtime.
- Connect the USB-C cable to the charging port on the case and to a power source.
- The LED indicator on the case will show charging status.
- Place the earbuds into the charging case to charge them.
2. Pairing with Your Device
The soundcore V20i headphones utilize Bluetooth 5.4 for a stable connection.
- Open the charging case. The earbuds will automatically enter pairing mode.
- On your device (smartphone, tablet, computer), enable Bluetooth.
- Search for "soundcore V20i" in the list of available Bluetooth devices and select it to connect.
- Once connected, a voice prompt will confirm the successful pairing.

Image: Visual guide on pairing the soundcore V20i headphones by removing them from the case to initiate pairing.
3. How to Wear and Adjust
The V20i headphones feature adjustable ear hooks for a secure and comfortable fit. There are four adjustable positions (LV1 to LV4) to fine-tune the fit for optimal comfort and sound quality.
- Hook the earbuds onto your ears.
- Rotate the ear hooks to find the position that provides the most secure and comfortable fit.
- LV1 and LV2 are generally suited for small to medium-sized ears.
- LV3 and LV4 are generally more comfortable for medium to large-sized ears.

Image: Illustration demonstrating the four adjustable positions of the ear hooks for a perfect fit, from LV1 to LV4.

Image: A close-up of the soundcore V20i earbud worn on an ear, highlighting its open-ear design for comfort.
Operating Instructions
Touch Controls
The V20i headphones feature intuitive touch controls on the earbuds. You can customize these controls via the soundcore app.
| Action | Function (Default) |
|---|---|
| Double tap (Left/Right) | Play/Pause, Answer/End Call |
| Press and hold 2s (Left/Right) | Reject Call |
| Triple tap (Left/Right) | Next Track (Customizable) |
Note: Specific functions for triple tap and other gestures can be configured in the soundcore app.

Image: A visual guide illustrating the touch control areas and their default functions for music playback and calls.
Customizable Lights
The V20i features personalized LED lights that can sync with your music. You can customize the colors and patterns through the soundcore app.

Image: A person wearing the soundcore V20i headphones, demonstrating the customizable LED lights feature, with a phone screen showing the app's light customization options.
soundcore App Control
Download the soundcore app for full control over your listening experience. The app allows you to:
- Customize touch controls.
- Adjust equalizer (EQ) settings with 22 built-in options and custom profiles.
- Personalize LED light settings.
- Update firmware.
- Find your device.

Image: Multiple phone screens displaying the soundcore app interface, showing options for sound effects (EQ) and colorful light customization.
Multipoint Connection
The V20i supports Bluetooth 5.4 Multipoint Connection, allowing seamless switching between two connected devices (e.g., a laptop and a smartphone). Activate this feature within the soundcore app.

Image: A visual representation of the soundcore V20i headphones connected simultaneously to a laptop and a smartphone, demonstrating the multipoint connection feature.
Powering Off
To power off the headphones, simply place them back into the charging case and close the lid. They will automatically disconnect and power down.

Image: A diagram showing the soundcore V20i earbuds being placed back into their charging case, indicating the power-off process.
Maintenance
Cleaning
Regular cleaning helps maintain the performance and longevity of your headphones.
- Use a soft, dry, lint-free cloth to clean the earbuds and charging case.
- Do not use abrasive cleaners or solvents.
- Ensure charging contacts on both earbuds and case are clean and dry.
Water and Sweat Resistance (IP55)
The soundcore V20i headphones are rated IP55 for dust and water resistance, making them suitable for workouts and outdoor activities. This means they are protected against limited dust ingress and low-pressure water jets from any direction.
- Do not submerge the headphones in water.
- Ensure the charging port is dry before charging.
- After exposure to sweat or water, wipe the headphones dry before placing them back in the charging case.

Image: The soundcore V20i headphones shown with water droplets, emphasizing their IP55 dust and water resistance.
Troubleshooting
| Problem | Solution |
|---|---|
| Headphones not pairing | Ensure Bluetooth is enabled on your device. Place earbuds back in case, close, then reopen to re-enter pairing mode. Forget "soundcore V20i" from your device's Bluetooth list and try pairing again. |
| Only one earbud working | Ensure both earbuds are charged. Place both earbuds back in the case, close the lid, wait a few seconds, then take them out again. If the issue persists, try resetting the headphones (refer to soundcore app or online support for specific reset instructions). |
| Poor sound quality / Low volume | Check the volume level on both your device and the headphones. Ensure earbuds are clean and properly seated in your ears. Try adjusting EQ settings in the soundcore app. |
| Headphones not charging | Ensure the charging cable is securely connected. Check if the charging port on the case and the charging contacts on the earbuds are clean and free of debris. Try a different USB-C cable or power adapter. |
| Touch controls not responding | Ensure your fingers are clean and dry. Try restarting the headphones by placing them in the case and taking them out. Check for firmware updates via the soundcore app. |
Specifications
| Feature | Detail |
|---|---|
| Model Name | A3876 |
| Connectivity Technology | Wireless (Bluetooth 5.4) |
| Ear Placement | Open Ear |
| Driver Size | 16mm |
| Playtime (Single Charge) | Up to 8 hours |
| Total Playtime (with Charging Case) | Up to 36 hours |
| Charging Time | Approx. 1.5 hours |
| Water Resistance Level | IP55 (Dust and Water Resistant) |
| Microphones | 4-Mic for Clear Calls |
| Control Type | Touch Control |
| Material | PC+ABS+TPU |
| Item Weight | 76.4 Grams |
| Product Dimensions | 10 x 5.6 x 2.5 cm |
Warranty and Support
soundcore products typically come with a limited warranty. For detailed warranty information, product registration, and technical support, please visit the official soundcore website or contact their customer service.
Official soundcore Store: soundcore Store on Amazon
For the most up-to-date support resources, including FAQs and troubleshooting guides, please refer to the soundcore support page.
Safety Information
Please read and follow all safety instructions before using your soundcore V20i headphones to prevent damage or injury.
- Hearing Protection: To avoid hearing damage, do not listen at high volume levels for prolonged periods.
- Situational Awareness: The open-ear design allows for situational awareness. However, do not use the headphones in situations where the inability to hear ambient sounds could be dangerous (e.g., driving, cycling, walking in traffic).
- Charging: Use only certified chargers and cables. Do not charge in wet conditions.
- Disassembly: Do not disassemble or modify the headphones. This will void the warranty and may cause damage.
- Extreme Temperatures: Avoid exposing the headphones to extreme temperatures (hot or cold).
- Cleaning: Clean only with a dry, soft cloth. Avoid harsh chemicals.





