1. Introduction
Thank you for choosing the OYIB S75 Bluetooth 5.3 Wireless Sport Earbuds. This manual provides detailed instructions on how to set up, operate, and maintain your earbuds to ensure optimal performance and longevity. Please read this manual carefully before use and retain it for future reference.
What's in the Box
- OYIB S75 Wireless Earbuds (Left & Right)
- Charging Case
- USB Type-C Charging Cable
- Eartips (S, M, L sizes)
- User Manual
Figure 1.1: Package Contents
2. Product Overview
The OYIB S75 earbuds are designed for an active lifestyle, offering advanced features for superior audio experience and convenience.
Key Features
- Bluetooth 5.3 Technology: Ensures stable connection, faster transmission, and lower power consumption.
- Hi-Fi Stereo Sound: Equipped with 13mm dynamic drivers for powerful bass and clear audio.
- HD Microphone: Provides clear call quality with noise reduction technology.
- Extended Playtime: Up to 10 hours on a single charge, with an additional 40 hours from the charging case (total 50 hours).
- Dual LED Power Display: Shows battery levels for both the charging case and individual earbuds.
- IPX7 Waterproof: Resistant to sweat and rain, ideal for sports and outdoor activities.
- Ergonomic Design: Secure and comfortable fit with flexible ear hooks and multiple eartip sizes.
- Smart Touch Control: Manage music, calls, and voice assistant with simple taps.
Figure 2.1: OYIB S75 Earbuds and Charging Case
Figure 2.2: Powerful Stereo Sound Technology
Figure 2.3: Dual LED Power Display
Figure 2.4: 50 Hours Playtime and USB-C Charging
Figure 2.5: IPX7 Waterproof Rating
Figure 2.6: Ergonomic Design for Sports
3. Setup
3.1 Charging the Earbuds and Case
Before first use, fully charge the earbuds and charging case. Connect the provided USB Type-C cable to the charging port on the case and a compatible USB power source. The LED display on the case will show the charging progress. A full charge takes approximately 2 hours.
- The charging case provides approximately 4-5 full charges for the earbuds.
- The earbuds will automatically charge when placed inside the case.
3.2 Pairing with Your Device
- Ensure the earbuds are charged.
- Open the charging case. The earbuds will automatically enter pairing mode, indicated by a flashing LED light on the earbuds.
- On your smartphone or Bluetooth-enabled device, go to the Bluetooth settings.
- Search for available devices and select "OYIB S75" from the list.
- Once connected, the LED indicator on the earbuds will turn off or show a steady light, and your device will confirm the connection.
- After the initial pairing, the earbuds will automatically connect to the last paired device when removed from the charging case.
Figure 3.1: One-Step Auto Pairing
4. Operating Instructions
4.1 Wearing the Earbuds
Choose the correct size eartips (S, M, L) for a comfortable and secure fit. Place the earbuds in your ears and adjust the flexible ear hooks over your ears until they feel snug and stable.
4.2 Touch Controls
The OYIB S75 earbuds feature intuitive touch controls on each earbud. Refer to the diagram below for specific functions:
- Play/Pause: Single tap on either earbud.
- Volume Up: Single tap on the Right earbud (R).
- Volume Down: Single tap on the Left earbud (L).
- Next Track: Double tap on the Right earbud (R).
- Previous Track: Double tap on the Left earbud (L).
- Answer/End Call: Single tap on either earbud.
- Reject Call: Press and hold either earbud for 2 seconds.
- Activate Voice Assistant (Siri/Google Assistant): Triple tap on either earbud.
Figure 4.1: Earbud Touch Controls
5. Maintenance
5.1 Cleaning
- Regularly clean the earbuds and charging case with a soft, dry, lint-free cloth.
- Do not use abrasive cleaners, alcohol, or chemical sprays.
- Remove eartips and clean them with mild soap and water if necessary, ensuring they are completely dry before reattaching.
- Clean the charging contacts on both the earbuds and the case with a dry cotton swab to ensure proper charging.
5.2 Storage
- Store the earbuds in their charging case when not in use to protect them and keep them charged.
- Avoid storing the device in extreme temperatures (hot or cold) or in dusty/humid environments.
5.3 Battery Care
- To prolong battery life, avoid fully discharging the earbuds and charging case frequently.
- Charge the device at least once every three months if not used regularly.
6. Troubleshooting
If you encounter any issues with your OYIB S75 earbuds, please refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Earbuds not pairing | Earbuds not in pairing mode; Bluetooth off on device; already connected to another device. | Ensure earbuds are in pairing mode (open case). Turn Bluetooth off/on on your device. Forget "OYIB S75" from your device's Bluetooth list and re-pair. |
| No sound from one earbud | Low battery; earbud not properly connected; earbud malfunction. | Place both earbuds back in the case, close it, then open it again. Ensure both earbuds are charged. Try re-pairing. |
| Charging issues | Dirty charging contacts; faulty cable/adapter; case battery depleted. | Clean charging contacts on earbuds and case. Try a different USB-C cable and power adapter. Ensure the charging case itself is charged. |
| Low volume or poor sound quality | Improper fit; dirty eartips; device volume too low. | Adjust earbuds for a snug fit. Try different eartip sizes. Clean eartips. Increase volume on both your device and the earbuds. |
| Earbuds disconnect frequently | Too far from device; interference; low battery. | Keep earbuds within 10 meters of your device. Avoid environments with strong Wi-Fi or other Bluetooth signals. Ensure earbuds are sufficiently charged. |
If the problem persists after trying these solutions, please contact OYIB customer support for further assistance.
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | S75 |
| Bluetooth Version | 5.3 |
| Connectivity Technology | Wireless (Bluetooth) |
| Ear Placement | In-Ear |
| Form Factor | In-Ear |
| Water Resistance Level | IPX7 (Waterproof) |
| Battery Type | Lithium-Polymer (Rechargeable) |
| Charging Time | Approx. 2 hours |
| Playtime (Single Charge) | 6-10 hours |
| Total Playtime (with Charging Case) | Up to 50 hours |
| Frequency Range | 20 Hz - 20,000 Hz |
| Compatible Devices | Phones, Tablets, Computers (Bluetooth-enabled) |
| Special Features | Volume Control, Touch Control, HD Microphone, LED Display |
8. Warranty and Support
8.1 Quality Assurance
OYIB is committed to providing high-quality products. Your OYIB S75 earbuds are covered by a standard manufacturer's warranty against defects in materials and workmanship. Please refer to the product packaging or contact customer support for specific warranty terms and conditions.
Figure 8.1: OYIB Quality Assurance
8.2 Customer Support
If you have any questions, concerns, or require assistance with your OYIB S75 earbuds, please do not hesitate to contact our customer support team. We are dedicated to resolving any issues you may encounter within 24 hours.
For support, please visit the OYIB Brand Store: OYIB Brand Store
Figure 8.2: Need Help? Contact Support
