1. Introduction
Thank you for choosing the BACKWIN B800 Wired Earbuds. These in-ear headphones are designed to deliver an immersive audio experience with their unique dual-drive unit system, combining an iron ring for high-resolution sound and a moving coil for powerful bass. Featuring a built-in microphone and inline controls, they are suitable for various activities, from listening to music to managing calls.
Please read this manual carefully to ensure proper use and maintenance of your earbuds.
2. Package Contents
- BACKWIN B800 Wired Earbuds (Red)
- Silicone Ear Tips (Small, Medium, Large)

Image: The red and black wired earbuds featuring the inline remote control with volume buttons and microphone, connected to the 3.5mm audio jack.
3. Product Overview
3.1 Earbud Components

Image: An exploded diagram illustrating the internal components of the earbud, including the dynamic coil, composite vibration film, sound processor, and the combination of moving coil and iron ring for sound production.
The BACKWIN B800 earbuds feature a sophisticated acoustic structure:
- Dual-Drive Units: Combines an iron ring driver for high-resolution audio and a moving coil driver for deep, powerful bass.
- Composite Vibration Film: Ensures a balanced and rich sound profile across all frequencies.
- Sound Processor: Integrates physical noise reduction for a clearer listening experience.
- CNC Metal Processing: The earbud shells are crafted with CNC precision machining, providing a durable and aesthetically pleasing metal texture.

Image: A detailed view highlighting the red and gold CNC precision machined metal casing of the earbud, emphasizing its premium build quality.
3.2 Inline Control Functions

Image: A visual guide to the inline remote control, detailing the functions of the volume up/down buttons, microphone, and the single, double, and triple click actions for call management and music playback.
The inline remote control allows for easy management of audio playback and calls:
- Microphone: High-definition microphone for clear voice transmission during calls and meetings.
- Volume Up (+): Increases audio volume.
- Volume Down (-): Decreases audio volume.
- Multi-function Button (Center): Controls music and calls.
4. Setup
4.1 Connecting Your Earbuds
- Locate the 3.5mm audio jack on your smartphone, tablet, computer, or other compatible audio device.
- Insert the 3.5mm plug of the BACKWIN B800 earbuds firmly into the audio jack until it clicks into place.
- Ensure the connection is secure for optimal sound quality.
4.2 Choosing and Installing Ear Tips
The earbuds come with three sizes of silicone ear tips (Small, Medium, Large) to ensure a comfortable and secure fit, as well as effective noise isolation.
- Gently remove the pre-installed ear tips from the earbuds.
- Select the ear tip size that best fits your ear canal. A good fit will provide better bass response and noise isolation.
- Carefully push the chosen ear tip onto the earbud nozzle until it is securely attached.
- Insert the earbuds into your ears at a 45-degree angle for a comfortable and stable fit, especially during activities like running or exercising.
5. Operating Instructions
5.1 Audio Playback Control
- Play/Pause: Press the multi-function button once.
- Next Track: Press the multi-function button twice quickly.
- Previous Track: Press the multi-function button three times quickly.
5.2 Call Management
- Answer Call: Press the multi-function button once during an incoming call.
- Reject Call: Press and hold the multi-function button for approximately 2 seconds during an incoming call.
- End Call: Press the multi-function button once during an active call.
5.3 Volume Control
- Increase Volume: Press the "+" button on the inline remote.
- Decrease Volume: Press the "-" button on the inline remote.
6. Maintenance and Care
Proper care will extend the lifespan of your earbuds and maintain optimal performance.
- Cleaning: Regularly clean the ear tips and the earbud mesh with a soft, dry cloth. For stubborn dirt, a slightly damp cloth can be used, but ensure no moisture enters the earbud housing. Remove ear tips for thorough cleaning.
- Storage: When not in use, store your earbuds in a clean, dry place, preferably in a protective pouch to prevent tangling and damage to the cable.
- Cable Care: Avoid sharp bends, excessive pulling, or tangling of the cable. Do not wrap the cable tightly around devices.
- Avoid Extreme Conditions: Do not expose the earbuds to extreme temperatures, humidity, or direct sunlight. Keep away from water and liquids.
7. Troubleshooting
If you encounter issues with your BACKWIN B800 earbuds, please refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound or low volume | Earbuds not fully plugged in; Device volume too low; Dirty audio jack/plug; Incorrect audio output settings on device. | Ensure the 3.5mm plug is fully inserted. Increase volume on your device. Clean the audio jack and plug. Check your device's audio output settings. |
| Sound distortion or crackling | Loose connection; Damaged cable; Audio source issue. | Check the connection. Inspect the cable for visible damage. Try with a different audio source or device. |
| Microphone not working | Microphone muted on device; Incorrect input settings; Damaged microphone. | Ensure the microphone is not muted on your device. Check your device's audio input settings. Test with another device if possible. |
| Inline controls not responding | Incompatibility with device; Software glitch; Damaged controls. | Some older devices may have limited compatibility. Restart your device. If the issue persists, the controls may be damaged. |
| Earbuds fall out easily | Incorrect ear tip size. | Try a different size of silicone ear tip (S, M, L) to find the most secure and comfortable fit. |
If the problem persists after trying these solutions, please contact customer support.
8. Specifications
| Feature | Specification |
|---|---|
| Model Name | B800 |
| Connectivity Technology | Wired (3.5mm Jack) |
| Audio Driver Type | Dual-Drive (Dynamic Driver + Iron Ring) |
| Impedance | 16 Ohm |
| Frequency Range | 20 Hz - 20,000 Hz |
| Noise Control | Sound Isolation, Noise Cancellation |
| Microphone | Included (HD Microphone) |
| Control Type | Volume Control, Touch (Inline Remote) |
| Material | Metal |
| Color | Red |
| Item Weight | 0.11 Kilograms (approx. 3.98 ounces) |
| Ear Placement | In Ear |
| Form Factor | In Ear |
| UPC | 715330915459 |
9. Warranty and Support
BACKWIN products are manufactured with high standards of quality and craftsmanship. For any questions, concerns, or warranty claims regarding your B800 Wired Earbuds, please contact BACKWIN customer support through the retailer's platform or the official brand website.
Please retain your proof of purchase for warranty purposes.




