Soundcore A3876
Soundcore V20i Open-Ear Headphones User Manual
Model: A3876
Introduction
Thank you for choosing the Soundcore V20i Open-Ear Headphones. This manual provides essential information for setting up, operating, and maintaining your headphones to ensure optimal performance and longevity. Please read it thoroughly before use.
The Soundcore V20i headphones are designed for comfort and situational awareness, featuring an open-ear design, adjustable ear hooks, powerful sound, clear calls, and IP55 water resistance.
What's in the Box
- Soundcore V20i Open-Ear Headphones
- Charging Case
- USB-C Cable
- Quick Start Guide & Safety Card

Image: The Soundcore V20i headphones, showing both earbuds and their accompanying charging case.
Setup
Initial Charge
Before first use, fully charge the headphones and the charging case. Connect the USB-C cable to the charging case and a power source. The LED indicators on the case will show charging status.
Charging Time: Approximately 1.5 hours for headphones, 2.5 hours for charging case.
Wearing the Headphones
The V20i headphones feature adjustable ear hooks for a secure and comfortable fit. Rotate the ear hooks to find the optimal position for your ears. There are four adjustable positions (LV1 to LV4) to accommodate different ear sizes and ensure stability and sound quality.
- LV1 & LV2: Best suited for small to medium-sized ears.
- LV3 & LV4: More comfortable for medium to large-sized ears.

Image: A visual guide demonstrating the four adjustable positions of the ear hooks for a proper fit.

Image: A close-up of the Soundcore V20i earbud worn on an ear, highlighting its open-ear design for comfort.
Pairing with a Device
- Open the charging case. The earbuds will automatically enter pairing mode.
- On your device, enable Bluetooth and search for "Soundcore V20i" in the list of available devices.
- Select "Soundcore V20i" to connect. Once connected, a voice prompt will confirm.
For future use, the earbuds will automatically connect to the last paired device when removed from the case.
If you encounter pairing issues, refer to the troubleshooting section or reset the earbuds by pressing and holding the buttons on both earbuds for 8 seconds until the LED indicators flash red and white 3 times.
Operating Instructions
Power On/Off
- Power On: Open the charging case, and the earbuds will power on automatically.
- Power Off: Place the earbuds back into the charging case and close the lid. They will power off automatically.
Controls
The Soundcore V20i features intuitive touch controls on each earbud. You can customize these controls via the Soundcore app.
| Action | Function |
|---|---|
| Double tap (Right Earbud) | Skip to next track |
| Double tap (Left Earbud) | Play/Pause |
| Double tap (Either Earbud) | Answer/End Call |
| Press and hold (Either Earbud) | Reject Call |
Note: For full customization of touch controls, download the Soundcore app.

Image: An illustration detailing the customizable touch controls available on the Soundcore V20i earbuds.
Sound Features
- Powerful Sound with 16mm Drivers: Enjoy rich, resonant bass thanks to the 16mm dynamic drivers with titanium-coated domes and Soundcore's proprietary BassUp technology.
- Custom Sound Profile: Tailor your audio experience with various EQ presets and 22 built-in options available through the Soundcore app.
- Clear Calls: Equipped with four microphones and an AI algorithm, the V20i ensures crisp and clear calls by reducing background noise.

Image: An exploded view diagram highlighting the 16mm driver with a titanium-coated dome and the BassUp technology for powerful sound.
Multipoint Connection
The V20i supports multipoint connection, allowing seamless switching between two paired Bluetooth devices (e.g., a smartphone and a laptop). To activate this feature, use the Soundcore app.

Image: A graphic illustrating the multipoint connection feature, showing the headphones connected simultaneously to a smartphone and a laptop.
Customizable Lights
The earbuds feature customizable lights that can sync with your music. Personalize the light settings and patterns through the Soundcore app to add visual flair to your listening experience.

Image: A person using the Soundcore app on a smartphone to customize the LED lights on their V20i earbuds.
Maintenance
Cleaning
Regularly clean your Soundcore V20i headphones and charging case with a soft, dry, lint-free cloth. Avoid using harsh chemicals or abrasive materials.
Water and Dust Resistance (IP55)
The V20i headphones are IP55 rated, meaning they are resistant to dust and water splashes, including sweat. This makes them suitable for workouts and outdoor activities. However, they are not designed for submersion in water.

Image: The Soundcore V20i earbuds shown with water droplets, emphasizing their IP55 water and sweat resistance.
Troubleshooting
Common Issues and Solutions
- Headphones not pairing:
- Ensure Bluetooth is enabled on your device.
- Make sure the headphones are charged.
- Place the earbuds back in the case, close the lid, wait a few seconds, then open it again to re-enter pairing mode.
- Try resetting the earbuds (press and hold buttons on both earbuds for 8 seconds until LEDs flash red and white 3 times).
- No sound or low volume:
- Check the volume level on both your device and the headphones.
- Ensure the headphones are properly connected to your device.
- Clean any debris from the speaker grilles.
- Poor call quality:
- Ensure the microphones are not obstructed.
- Move closer to your connected device.
- Avoid noisy environments if possible.
- Earbuds not charging:
- Ensure the charging cable is securely connected.
- Check if the charging case has power.
- Clean the charging contacts on both the earbuds and the case.
Specifications
| Feature | Detail |
|---|---|
| Model Name | soundcore V20i Open-Ear Headphones |
| Connectivity Technology | Wireless (Bluetooth 5.4) |
| Audio Driver Size | 16 Millimeters |
| Frequency Response | 20 Hz - 20,000 Hz |
| Battery Life (Single Charge) | 8 Hours |
| Total Playtime with Charging Case | 36 Hours |
| Charging Time (Earbuds) | 1.5 Hours |
| Charging Time (Case) | 2.5 Hours |
| Water Resistance Level | IP55 (Waterproof) |
| Control Type | Touch Control |
| Material | PC+ABS+TPU |
| Item Weight | 76.4 Grams |
| Product Dimensions | 1.61 x 1.97 x 0.51 inches |
Warranty and Support
For detailed warranty information and customer support, please visit the official Soundcore website or refer to the Quick Start Guide and Safety Card included in your product packaging.
You can also download the full User Manual in PDF format from the following link: Soundcore V20i User Manual (PDF)
For additional troubleshooting and FAQs, please visit the Troubleshooting Guide (PDF).
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