KoolStar OxyBuds
KoolStar OxyBuds Stereo In-Ear Earphones User Manual
Model: OxyBuds
1. Introduction
Thank you for purchasing the KoolStar OxyBuds Stereo In-Ear Earphones. This manual provides detailed instructions on how to set up, operate, and maintain your new earphones. Please read this manual carefully before use to ensure optimal performance and longevity of your device.
2. Package Contents
Please check the package contents to ensure all items are present:
- 2 x KoolStar OxyBuds Stereo In-Ear Earphones (pairs)
- 1 x Charging Case
- 1 x Micro USB Charging Cable
- 1 x User Manual (this document)
3. Product Overview
Familiarize yourself with the components of your OxyBuds earphones and charging case.

Image: The KoolStar OxyBuds earphones shown with their open charging case. The earphones are black, compact, and designed to fit snugly in the ear. The charging case is also black, sleek, and portable, providing a secure storage and charging solution for the earbuds.

Image: A close-up view of a single KoolStar OxyBuds earbud. It highlights the smooth, black exterior, the touch-sensitive control panel, and the small charging contacts on the underside, which connect with the charging case.
Earbud Features:
- Touch Control Area: For managing music playback and calls.
- LED Indicator: Displays pairing status and battery level.
- Charging Contacts: Connects to the charging case for power.
- Microphone: For hands-free calling.
Charging Case Features:
- Earbud Charging Slots: Securely holds and charges the earbuds.
- Micro USB Port: For charging the case itself.
- Charging Indicator: Shows the charging status of the case.
4. Setup
4.1. Charging the Earphones and Case
Before first use, fully charge the earphones and the charging case.
- Place the OxyBuds earphones into their respective slots in the charging case. Ensure the charging contacts align.
- Connect the Micro USB cable to the charging port on the case and the other end to a USB power source (e.g., computer USB port, USB wall adapter - not included).
- The indicator light on the case will show charging status. Once fully charged, the light may change color or turn off.
- A full charge provides approximately 1.5 hours of earbud playtime and the case can recharge the earbuds up to 3 times.
4.2. Pairing with Your Device
The OxyBuds feature automatic synchronization for easy pairing.
- Ensure the earphones are charged.
- Open the charging case. The earphones will automatically power on and enter pairing mode. The LED indicators on the earbuds will flash, indicating they are ready to pair.
- On your smartphone or Bluetooth-enabled device, go to the Bluetooth settings.
- Search for available devices and select "OxyBuds" from the list.
- Once connected, the earbud LED indicators will stop flashing or turn off, and you will hear a confirmation tone.
- The earphones will automatically reconnect to the last paired device when taken out of the case, if Bluetooth is enabled on the device.
5. Operating Instructions
The OxyBuds feature intuitive touch controls on each earbud.
5.1. Music Playback
- Play/Pause: Tap the touch control area on either earbud once.
- (Specific controls for Next/Previous Track or Volume are not detailed in product information. Please refer to your device's general Bluetooth controls if needed.)
5.2. Call Management
- Answer Call: Tap the touch control area on either earbud once when an incoming call rings.
- Reject Call: Press and hold the touch control area on either earbud for approximately 2 seconds.
- End Call: Tap the touch control area on either earbud once during a call.
5.3. Battery Display (iOS)
For iOS devices, the battery level of the OxyBuds can be displayed on your phone's screen, typically in the widgets section or status bar.
6. Maintenance
Proper care will extend the life of your OxyBuds earphones.
- Cleaning: Use a soft, dry, lint-free cloth to clean the earphones and charging case. Do not use abrasive cleaners, alcohol, or chemical solvents.
- Storage: When not in use, store the earphones in their charging case to protect them from dust and damage.
- Avoid Water: The earphones are not waterproof. Avoid exposure to water, moisture, or extreme temperatures.
- Charging: Charge the earphones regularly, even if not used for extended periods, to maintain battery health.
7. Troubleshooting
If you encounter issues with your OxyBuds, try the following solutions:
| Problem | Possible Solution |
|---|---|
| Earphones do not turn on. | Ensure the earphones are charged. Place them in the charging case and connect the case to a power source. |
| Earphones do not pair with device. |
|
| No sound or low volume. |
|
| Charging case not charging. |
|
8. Specifications
| Feature | Detail |
|---|---|
| Model Name | OxyBuds |
| Bluetooth Version | 5.0 |
| Wireless Range | Up to 10 meters (33 feet) |
| Earbud Battery Capacity | 30 mAh (per earbud) |
| Charging Case Battery Capacity | 210 mAh (provides up to 3 full earbud charges) |
| Earbud Playtime | Approx. 1.5 hours |
| Standby Time | Approx. 100 hours |
| Sound Quality | 3D Stereo Sound |
| Weight (per earbud) | 3.85 g |
| Color | Black |
| Compatibility | Android, iOS |
9. Warranty and Support
KoolStar products are designed and manufactured to the highest quality standards. For information regarding warranty coverage, technical support, or service inquiries, please refer to the warranty card included with your purchase or visit the official KoolStar website. Please retain your proof of purchase for any warranty claims.
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