1. Introduction
Thank you for purchasing the STN-28 Colorful Cat Ear Luminous Bluetooth Headset. This headset combines wireless audio technology with a unique luminous cat ear design, offering a comfortable and immersive listening experience. This manual provides essential information on how to set up, operate, and maintain your new headset.
2. Safety Information
- Do not expose the headset to extreme temperatures, humidity, or corrosive substances.
- Avoid dropping or subjecting the headset to strong impacts.
- Do not disassemble or attempt to repair the headset yourself. This will void the warranty.
- Clean the headset with a soft, dry cloth. Do not use harsh chemicals or abrasive materials.
- Prolonged listening at high volume levels may cause hearing damage. Adjust volume to a safe level.
3. Package Contents
- STN-28 Wireless Headset Body
- USB Charging Cable
- User Manual (this document)
4. Product Overview and Controls
Familiarize yourself with the headset's components and control buttons.
Image: Front view of the STN-28 headset in black, showcasing the luminous cat ears and paw print design on the earcups.
Image: Two STN-28 headsets, one in purple and one in pink, displayed on a wooden stand, highlighting their colorful design and cat ear feature.
Control Buttons (Typical Layout - Refer to your specific model for exact placement):
- Power Button: On/Off, Play/Pause, Answer/End Call.
- Volume Up (+): Increase volume, Next track (long press).
- Volume Down (-): Decrease volume, Previous track (long press).
- Mode Button (M): Switch between Bluetooth and TF Card mode.
- USB Charging Port: For charging the headset.
- TF Card Slot: Insert external TF card for music playback.
- LED Indicator Light: Shows power, connection, and charging status.
5. Setup
5.1 Charging the Headset
- Connect the USB charging cable to the headset's USB charging port.
- Connect the other end of the cable to a USB power source (e.g., computer USB port, USB wall adapter).
- The LED indicator light will show a red light during charging.
- A full charge takes approximately 2 hours. The red light will turn off when fully charged.
Note: Ensure the headset is fully charged before first use for optimal battery life.
5.2 Powering On/Off
- To Power On: Press and hold the Power button for a few seconds until the LED indicator lights flash red and blue.
- To Power Off: Press and hold the Power button for a few seconds until the LED indicator light turns off.
5.3 Bluetooth Pairing
- Ensure the headset is fully charged and powered off.
- Press and hold the Power button until the LED indicator lights flash red and blue alternately. This indicates the headset is in pairing mode.
- On your device (smartphone, tablet, laptop), enable Bluetooth and search for available devices.
- Select "STN-28" or "LX-B39C" from the list of found devices.
- Once successfully paired, the LED indicator light on the headset will flash blue slowly.
Note: The headset supports Bluetooth 5.0+EDR for stable and efficient connection.
6. Operating Instructions
6.1 Music Playback (Bluetooth Mode)
- Play/Pause: Short press the Power button.
- Volume Up: Short press the "+" button.
- Volume Down: Short press the "-" button.
- Next Track: Long press the "+" button.
- Previous Track: Long press the "-" button.
6.2 Phone Calls
- Answer Call: Short press the Power button when an incoming call rings.
- End Call: Short press the Power button during a call.
- Reject Call: Long press the Power button when an incoming call rings.
6.3 TF Card Playback
- Insert a TF (MicroSD) card with MP3 audio files into the TF card slot.
- The headset will automatically switch to TF card playback mode, or you may need to short press the "M" (Mode) button to switch.
- Use the Play/Pause, Volume Up/Down, and Next/Previous Track buttons as described in section 6.1.
6.4 Luminous Cat Ear Feature
The cat ears and paw print on the earcups feature luminous accents. This feature is typically activated automatically when the headset is powered on. There is no specific control mentioned for this feature, implying it's always on when the headset is active.
7. Maintenance and Care
- Cleaning: Wipe the headset regularly with a soft, dry, lint-free cloth. Do not use liquid cleaners or sprays.
- Storage: When not in use, store the headset in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Charge the headset regularly, even if not in use for extended periods.
- Water Resistance: The headset is listed as "Waterproof". While it offers protection against water, avoid submerging it in water or exposing it to heavy rain for prolonged periods to prevent damage.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Headset does not power on. | Low battery. | Charge the headset fully (approx. 2 hours). |
| Cannot pair with device. | Headset not in pairing mode; Bluetooth off on device; device too far. | Ensure headset is flashing red/blue; enable Bluetooth on device; keep devices within 10 meters. Try forgetting the device on your phone and re-pairing. |
| No sound or low volume. | Volume too low on headset or device; headset not connected. | Increase volume on both headset and connected device. Ensure headset is properly paired. |
| TF card not playing. | Card not inserted correctly; unsupported file format; headset not in TF card mode. | Reinsert TF card; ensure files are MP3; press 'M' button to switch to TF card mode. |
9. Specifications
| Model | STN-28 / LX-B39C |
| Wearing Method | Head-mounted folding |
| Bluetooth Version | Bluetooth 5.0+EDR |
| Supported Bluetooth Modes | A2DP 1.2, AVRCP 1.0, HSP, HSF 1.5 |
| Battery Capacity | 400mAh Polymer A-grade Lithium Battery |
| Speaker Size / Impedance | 40mm / 32Ω |
| Transmission Range | ≤10 meters (33 feet) |
| Charging Time | Approx. 2 hours |
| Music Playback Time | ≤6 hours |
| Talk Time | ≤6 hours |
| Standby Time | 200 hours |
| Frequency Range | 20 Hz - 20,000 Hz |
| Water Resistance Level | Waterproof |
| Control Type | Media Control, Touch (via buttons) |
| Special Features | Luminous Cat Ears, TF Card Playback |
10. Warranty and Support
This product comes with a standard manufacturer's warranty. For specific warranty terms, conditions, and duration, please refer to the warranty card included with your purchase or contact the retailer where you purchased the product.
For technical support or inquiries, please contact your retailer or the manufacturer directly. Keep your purchase receipt as proof of purchase for warranty claims.
