1. Introduction
Thank you for choosing the Boytond Ultra Open Ear Earbuds S30i. These earbuds are designed to provide a comfortable listening experience while allowing you to remain aware of your surroundings. This manual provides essential information on how to set up, operate, maintain, and troubleshoot your new earbuds.

Figure 1: Boytond Ultra Open Ear Earbuds S30i in their charging case.
2. Setup
2.1. Unboxing and Initial Inspection
Upon opening the package, ensure all components are present:
- Boytond Ultra Open Ear Earbuds (Left and Right)
- Charging Case
- USB Charging Cable
- User Manual
2.2. Charging the Earbuds and Case
Before first use, fully charge the earbuds and the charging case. Connect the provided USB cable to the charging port on the case and to a compatible USB power source. The LED indicator on the charging case will show the charging status. A full charge provides up to 10 hours of playtime for the earbuds and an additional 40 hours with the charging case. A quick 5-minute charge can provide 1 hour of playback.

Figure 2: Charging case displaying battery levels for both earbuds and the case.
2.3. Pairing with a Device
The earbuds feature advanced Bluetooth 5.3 for stable and fast connections. They will automatically enter pairing mode when removed from the charging case.
- Ensure the earbuds are charged.
- Open the charging case and remove both earbuds. They will automatically power on and enter pairing mode.
- On your device (smartphone, tablet, computer), enable Bluetooth.
- Search for available Bluetooth devices and select "Boytond S30i" (or similar name) from the list.
- Once connected, you will hear an audio prompt, and the earbuds will be ready for use.
Figure 3: Earbuds seamlessly connected to multiple devices via Bluetooth 5.3.
3. Operation
3.1. Wearing the Earbuds
The S30i earbuds feature an open-ear, clip-on design for comfort and situational awareness. Gently clip each earbud onto your ear, ensuring the audio driver is positioned near your ear canal without entering it. The flexible design allows for a secure and comfortable fit for various ear shapes.
Figure 4: Illustration of the flexible clip-on design for a comfortable and secure fit.
Figure 5: Comparison highlighting the comfort and pain-free design of the clip-on earbuds.
3.2. Touch Controls
The earbuds feature touch-sensitive controls on their surface. The following actions can be performed:
- Answer Call: Tap either earbud once (x1).
- Hang Up Call: Tap either earbud once (x1).
- Play/Pause Music: Tap either earbud once (x1).
- Next Song: Tap the right earbud twice (x2).
- Previous Song: Tap the left earbud three times (x3).
3.3. Audio Quality and Calls
Equipped with 16.3mm drivers and bone conduction technology, these earbuds deliver clear stereo sound. The design allows for environmental awareness while listening to audio. Crystal-clear call quality is supported by noise reduction technology.
Figure 6: Detailed view of the earbud's internal audio driver for high-fidelity sound.
4. Maintenance
4.1. Cleaning
To maintain optimal performance and hygiene, regularly clean your earbuds and charging case. Use a soft, dry, lint-free cloth to wipe the surfaces. Avoid using abrasive materials or harsh chemicals.
4.2. Storage
When not in use, store the earbuds in their charging case to protect them from dust, damage, and to keep them charged. Store the case in a cool, dry place away from direct sunlight and extreme temperatures.
4.3. Water Resistance
The earbuds feature a waterproof design, making them suitable for various activities. However, they are not designed for submersion in water. Avoid prolonged exposure to water and ensure they are dry before placing them back in the charging case.
5. Troubleshooting
If you encounter issues with your earbuds, refer to the following common solutions:
| Problem | Possible Solution |
|---|---|
| Earbuds not pairing |
|
| No sound or low volume |
|
| Poor call quality (caller cannot hear me) |
|
| Earbuds not charging |
|
| Uncomfortable fit or falling off |
|
6. Specifications
| Feature | Detail |
|---|---|
| Model Number | S30i |
| Brand | Boytond |
| Connectivity | Bluetooth 5.3 |
| Audio Driver Type | Bone Conduction Driver |
| Control Method | Touch |
| Earbud Playtime (Single Charge) | Up to 10 hours |
| Total Playtime (with Charging Case) | Up to 50 hours |
| Fast Charging | 5 minutes charge for 1 hour playback |
| Special Features | Open Ear Design, Bone Conduction Technology, Waterproof Design |
| Item Weight | 3.84 ounces |
| Color | Crystal Purple |
7. Warranty and Support
7.1. Warranty Information
Please refer to the warranty card included in your product packaging for detailed warranty terms and conditions. The warranty typically covers manufacturing defects for a specified period from the date of purchase.
7.2. Customer Support
For technical assistance, troubleshooting not covered in this manual, or warranty claims, please contact Boytond customer support. Contact information can usually be found on the product packaging, the official Boytond website, or your purchase platform.