Introduction
Thank you for choosing 9 DIGITAL Bone Conduction Headphones. These open-ear headphones utilize advanced bone conduction technology to deliver audio through your cheekbones, allowing you to remain aware of your surroundings while enjoying sound. Designed for comfort and durability, they are ideal for various activities including running, cycling, and gym workouts.
Image: The 9 DIGITAL Bone Conduction Headphones in blue, shown with a pair of orange earplugs, highlighting the open-ear design.
Key Features
- Bone Conduction Technology: Delivers sound through bone, maintaining sound fidelity and environmental awareness.
- Amazing Stereo Playback: Optimized for phone calls, music, and entertainment.
- Waterproof and Lightweight: IP54 rated for sweat and water resistance, weighing approximately 25g.
- Bluetooth 5.0 Connectivity: Ensures stable and efficient wireless connection.
- Long Battery Life: Up to 6.5 hours of working time.
Image: The headphones displayed alongside various icons illustrating their features, including suitability for running, cycling, light weight (25g), use during work or gym, climbing, IP54 waterproof rating, Qualcomm chip, 6.5 hours working time, and Bluetooth 5.0 connectivity.
Understanding Bone Conduction Technology
Bone conduction headphones transmit sound vibrations directly to the inner ear through the bones of the skull, bypassing the eardrum. This method allows for open-ear listening, which means your ears remain uncovered, enabling you to hear ambient sounds alongside your audio. This is particularly beneficial for outdoor activities where situational awareness is crucial for safety.
Image: An exploded view diagram of the 9 DIGITAL Bone Conduction Headphones, illustrating how sound vibrations are transmitted through the bone to the auditory nerve, bypassing the tympanic membrane.
Setup
Charging the Headphones
Before first use, fully charge your headphones. Use the included charging cable to connect the headphones to a USB power source (e.g., computer USB port, wall adapter).
- The LED indicator will show charging status.
- A full charge typically takes approximately 1.5-2 hours.
Bluetooth Pairing
- Ensure the headphones are powered off.
- Press and hold the Multi-Function Button (MFB) for approximately 5-7 seconds until the LED indicator flashes red and blue alternately. This indicates pairing mode.
- On your device (smartphone, tablet, computer), enable Bluetooth and search for available devices.
- Select "9 DIGITAL Lite" (or similar name) from the list of found devices.
- Once connected, the LED indicator will turn solid blue or flash blue slowly, and you will hear a confirmation tone.
- If prompted for a password, enter "0000".
Operating Instructions
Wearing the Headphones
Place the headphones with the transducers resting on your cheekbones, just in front of your ears. The band should wrap around the back of your head. Adjust for a comfortable and secure fit.
Image: A man wearing the 9 DIGITAL Bone Conduction Headphones while preparing to run on a track, demonstrating the secure fit during physical activity.
Image: A man wearing the 9 DIGITAL Bone Conduction Headphones under a cycling helmet, illustrating compatibility with headwear during activities like cycling.
Button Functions
Image: A detailed diagram showing the location and function of the control buttons on the 9 DIGITAL Bone Conduction Headphones, including volume up/down, power, and multi-function button (MFB) actions.
- Power On/Off: Press and hold the Power button (often combined with Volume +) for 3 seconds.
- Volume Up (+): Click the '+' button once.
- Volume Down (-): Click the '-' button once.
- Play/Pause: Click the MFB once.
- Next Track: Double-click the MFB.
- Previous Track: Triple-click the MFB (if supported).
- Answer/End Call: Click the MFB once during an incoming call.
- Reject Call: Press and hold the MFB for 2 seconds during an incoming call.
- Activate Voice Assistant: Click the MFB three times (if supported).
Maintenance
Proper care will extend the lifespan of your headphones.
- Cleaning: Wipe the headphones with a soft, damp cloth. Do not use harsh chemicals or abrasive cleaners.
- Storage: Store the headphones in a cool, dry place away from direct sunlight and extreme temperatures.
- Water Resistance (IP54): The headphones are sweat and splash resistant. Do not submerge them in water or expose them to heavy rain. Dry them thoroughly after exposure to moisture.
Image: Two people, a man and a woman, wearing the 9 DIGITAL Bone Conduction Headphones while exercising in a gym, demonstrating their suitability for sweaty activities due to IP54 rating.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Headphones do not power on | Low battery | Charge the headphones fully. |
| Cannot pair with device | Headphones not in pairing mode; Bluetooth off on device; device too far | Ensure headphones are in pairing mode (flashing red/blue). Turn on Bluetooth on your device. Move device closer to headphones (within 10 meters). |
| No sound or low volume | Volume too low; not connected; audio source issue | Increase headphone and device volume. Reconnect Bluetooth. Check audio source. |
| Sound is distorted or intermittent | Interference; device too far; low battery | Move away from sources of interference. Reduce distance between headphones and device. Charge headphones. |
Specifications
| Feature | Detail |
|---|---|
| Model Name | Lite |
| Brand | 9 DIGITAL |
| Connectivity Technology | Wireless (Bluetooth) |
| Wireless Communication Technology | Bluetooth |
| Ear Placement | Open Ear |
| Form Factor | Bone Conduction |
| Material | PC & ABS & Titanium |
| Product Dimensions | 14 x 11 x 4.5 cm |
| Item Weight | 25 g |
| Included Components | Cable |
| Manufacturer | SHENZHEN YUYUANTONG TECHNOLOGY CO., LTD |
| First Available Date | 3 Aug. 2022 |
Warranty and Support
9 DIGITAL is committed to providing high-quality products and customer satisfaction.
- Lifetime Technical Support: We offer lifetime technical support for our products.
- 12-Month Satisfying Service: Enjoy a 12-month service period for your peace of mind.
For further assistance, troubleshooting, or warranty claims, please contact 9 DIGITAL customer support through the retailer's platform or the official brand website.
