Soul Electronics SS57BK
SOUL S-FIT True Wireless Earbuds Instruction Manual
Model: SS57BK
1. Introduction
The SOUL S-FIT True Wireless Earbuds are designed for versatile use, offering a secure and comfortable fit for various activities, including sports and casual listening. These earbuds feature advanced connectivity, robust durability, and intuitive controls to enhance your audio experience.
2. What's in the Box
Upon unboxing your SOUL S-FIT True Wireless Earbuds, you will find the following items:
- SOUL S-FIT True Wireless Earbuds (Left and Right)
- Charging Case
- USB-C Charging Cable
- Carabiner Hook (for attaching the charging case)
- Multiple Sizes of Ear Stabilizers
- Multiple Sizes of Ear Gels

Image: The SOUL S-FIT True Wireless Earbuds and their compact charging case.

Image: The SOUL S-FIT charging case with an attached carabiner hook, clipped to a bag for portability.
3. Setup
3.1 Charging the Earbuds and Case
Before initial use, fully charge the earbuds and the charging case. Connect the provided USB-C cable to the charging port on the case and to a power source. The indicator lights on the case will show the charging status.
3.2 Pairing with Your Device
- Ensure your device's Bluetooth is turned on.
- Open the charging case. The earbuds will automatically enter pairing mode.
- On your device, search for Bluetooth devices and select "SOUL S-FIT" from the list.
- Once connected, you will hear an audio confirmation.
The earbuds feature auto-pairing technology, meaning they will automatically connect to the last paired device when removed from the case.
4. Operating the Earbuds
4.1 Basic Controls
The SOUL S-FIT earbuds utilize touch controls for various functions:
- Play/Pause: Single tap on either earbud.
- Next Track: Double tap on the right earbud.
- Previous Track: Double tap on the left earbud.
- Answer/End Call: Single tap on either earbud.
- Reject Call: Press and hold either earbud.
- Activate Voice Assistant: Triple tap on either earbud.
4.2 Transparency Mode
Transparency Mode allows you to hear your surroundings while listening to audio, enhancing situational awareness. To activate or deactivate Transparency Mode, refer to the specific instructions in your quick start guide or the SOUL app (if available).

Image: The SOUL S-FIT Earbuds illustrating the Audio Transparency feature, which allows ambient sounds to be heard.
5. Customizable Fit
Achieving the optimal fit is crucial for both comfort and sound quality. The SOUL S-FIT earbuds come with various sizes of ear gels and ear stabilizers to ensure a secure and comfortable fit for different ear shapes.
- Selecting Ear Gels: Experiment with different sizes to find the ones that create a snug seal in your ear canal. A good seal improves bass response and passive noise isolation.
- Selecting Ear Stabilizers: Choose the stabilizer size that comfortably anchors the earbud in your outer ear, preventing it from falling out during movement.
It is common for each ear to require a different size ear gel or stabilizer. Adjust as needed for the best experience.

Image: A close-up of a SOUL S-FIT earbud highlighting its ergonomic design and Freebit wing-shaped earlock for a secure fit.
6. Water and Dust Resistance
The SOUL S-FIT earbuds are rated IP67 for water and dust resistance. This means they are protected against dust ingress and can withstand immersion in water up to 1 meter for 30 minutes. They are suitable for use during workouts, in rainy conditions, and other environments where exposure to sweat or splashes may occur.
Note: The charging case is not water or dust resistant. Ensure earbuds are dry before placing them back into the charging case.

Image: The SOUL S-FIT Earbuds shown with water splashing, indicating their IP67 water and dust proof rating.
7. Battery Life
The SOUL S-FIT earbuds offer extended battery life to keep your music playing throughout the day. With the included charging case, you can achieve up to 33 hours of total playtime.
- Earbud Playtime: Refer to product specifications for single charge playtime.
- Charging Case: Provides multiple additional charges for the earbuds.

Image: The SOUL S-FIT Earbuds and their charging case, highlighting the impressive 33 hours of total battery life.
8. Specifications
| Feature | Detail |
|---|---|
| Model Number | SS57BK |
| Connectivity Technology | Bluetooth 5.0 |
| Water Resistance Level | IP67 (Waterproof) |
| Special Features | Water-resistant, Wireless, Shock-Resistant, Transparency Mode |
| Control Method | Touch |
| Compatible Devices | Laptop, Smartphone, Tablet |
| Audio Driver Type | Dynamic Driver |
| Power Source | Battery Powered |
| Product Dimensions | 5.28 x 1.54 x 7.32 inches |
| Item Weight | 9.7 ounces |
9. Maintenance
Proper maintenance ensures the longevity and optimal performance of your SOUL S-FIT earbuds:
- Cleaning: Regularly clean the earbuds and charging case with a soft, dry cloth. For ear gels, remove them and clean with mild soap and water, ensuring they are completely dry before reattaching.
- Storage: Store the earbuds in their charging case when not in use to protect them and keep them charged.
- Water Exposure: While the earbuds are waterproof, avoid prolonged exposure to saltwater or chlorinated water. Always rinse with fresh water and dry thoroughly after exposure to liquids.
- Charging: Use only the provided USB-C cable or a certified equivalent for charging.
10. Troubleshooting
If you encounter any issues with your SOUL S-FIT earbuds, try the following troubleshooting steps:
- No Sound/Poor Sound Quality:
- Ensure earbuds are properly seated in your ears with the correct size ear gels for a good seal.
- Check the volume level on both your device and the earbuds.
- Ensure earbuds are fully charged.
- Try re-pairing the earbuds with your device.
- Earbuds Not Pairing:
- Make sure Bluetooth is enabled on your device.
- Place both earbuds back into the charging case, close the lid, wait a few seconds, then open it again to re-enter pairing mode.
- Forget the device from your phone's Bluetooth settings and attempt to pair again.
- Charging Issues:
- Verify the USB-C cable is securely connected to both the case and the power source.
- Ensure the charging contacts on the earbuds and inside the case are clean and free of debris.
- Try a different USB-C cable or power adapter.
11. Warranty and Support
The SOUL S-FIT True Wireless Earbuds come with a Limited Warranty. For detailed warranty information, product support, or to contact customer service, please refer to the official Soul Electronics website or the warranty card included in your product packaging.
For further assistance, you may visit the Soul Electronics Store on Amazon.
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