CHENSIVE K08-13
CHENSIVE Bone Conduction Headphones K08-13 User Manual
Model: K08-13
1. Introduction
Thank you for choosing the CHENSIVE Bone Conduction Headphones K08-13. These open-ear wireless headphones are designed to provide high-quality audio while keeping you aware of your surroundings. Utilizing bone conduction technology, sound is transmitted through your cheekbones, leaving your ears open. This manual provides detailed instructions for setup, operation, maintenance, and troubleshooting to ensure optimal performance and longevity of your device.

Image 1.1: The open-ear design allows for situational awareness while listening to audio.
2. What's in the Box
Please check the package contents to ensure all items are present:
- CHENSIVE Bone Conduction Headphones
- Type-C Charge Cable
- User Manual

Image 2.1: Package contents of the CHENSIVE K08-13 headphones.
3. Product Overview
3.1 Key Features
- Open-Ear Design: Delivers sound through cheekbones, allowing awareness of surroundings.
- Bluetooth 5.4: Ensures stable and fast wireless connection with a range of up to 10 meters (33 feet).
- IPX6 Waterproof: Resistant to sweat, dust, and moisture, suitable for various activities.
- Long Battery Life: Up to 12 hours of continuous music/calls, 240 hours standby time.
- Lightweight & Comfortable: Weighs only 25 grams with silicone pads for extended wear.
- Stable Fit: Titanium memory metal frame provides a secure fit during strenuous exercise.

Image 3.1: Bluetooth 5.4 for enhanced connectivity.

Image 3.2: IPX6 waterproof rating for durability during activities.

Image 3.3: Battery life indicators for the headphones.
3.2 Controls
The headphones feature intuitive button controls for various functions:

Image 3.4: Overview of headphone button controls.
- Power Button (Multi-function Button):
- Press and hold for 3 seconds: Power On/Off
- Press and hold for 1 second: Activate Voice Assistant
- Click once: Play/Pause music, Answer/End call
- Double click: Redial last number
- Volume Up (+) Button:
- Click once: Increase volume
- Press and hold for 2 seconds: Next track
- Volume Down (-) Button:
- Click once: Decrease volume
- Press and hold for 2 seconds: Previous track
4. Setup
4.1 Charging the Headphones
Before first use, fully charge the headphones. Use the provided Type-C charging cable.
- Connect the Type-C end of the charging cable to the charging port on the headphones.
- Connect the USB-A end of the charging cable to a standard USB power adapter (not included) or a computer's USB port.
- The LED indicator will show charging status (e.g., red for charging, blue for fully charged).
- A full charge takes approximately 2 hours.

Image 4.1: Connecting the Type-C charging cable.
4.2 Pairing with a Bluetooth Device
To connect your headphones to a smartphone, tablet, or other Bluetooth-enabled device:
- Ensure the headphones are powered off.
- Press and hold the Power Button for approximately 5-7 seconds until the LED indicator flashes red and blue alternately, indicating pairing mode.
- On your device, enable Bluetooth and search for available devices.
- Select "K08-13" from the list of found devices.
- Once connected, the LED indicator on the headphones will flash blue slowly, and you will hear a confirmation tone.
- The headphones will automatically reconnect to the last paired device when powered on, if the device's Bluetooth is active and within range.

Image 4.2: Bluetooth pairing process on a mobile device.
5. Operating Instructions
5.1 Power On/Off
- Power On: Press and hold the Power Button for 3 seconds. The LED indicator will flash blue.
- Power Off: Press and hold the Power Button for 3 seconds. The LED indicator will flash red and then turn off.
5.2 Music Playback
- Play/Pause: Click the Power Button once.
- Next Track: Press and hold the Volume Up (+) Button for 2 seconds.
- Previous Track: Press and hold the Volume Down (-) Button for 2 seconds.
- Volume Up: Click the Volume Up (+) Button once.
- Volume Down: Click the Volume Down (-) Button once.
5.3 Call Management
- Answer/End Call: Click the Power Button once.
- Reject Call: Press and hold the Power Button for 2 seconds.
- Redial Last Number: Double-click the Power Button.
5.4 Voice Assistant
- Activate Voice Assistant: Press and hold the Power Button for 1 second. This will activate your device's voice assistant (e.g., Siri, Google Assistant).
6. Maintenance
Proper maintenance ensures the longevity and performance 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: The headphones are IPX6 waterproof, meaning they are resistant to strong jets of water. They are suitable for use during exercise and in light rain. Do not submerge them in water. Ensure the charging port cover is securely closed before exposure to moisture.
- Charging Port: Keep the Type-C charging port clean and free of debris.
7. Troubleshooting
If you encounter issues with your headphones, refer to the following common problems and solutions:
| Problem | Possible Solution |
|---|---|
| Headphones do not power on | Ensure the headphones are charged. Connect to a power source using the Type-C cable. |
| Cannot pair with device | Ensure headphones are in pairing mode (LED flashes red/blue). Turn off and on your device's Bluetooth. Move headphones closer to the device. |
| No sound or low volume | Check volume levels on both headphones and connected device. Ensure headphones are properly paired. Try re-pairing. |
| Intermittent connection | Ensure no obstacles between headphones and device. Move closer to the device (within 10m/33ft). Avoid strong electromagnetic interference. |
| Charging issue | Verify the charging cable is securely connected. Try a different USB power source or cable. Ensure the charging port is clean. |
8. Specifications
Technical specifications for the CHENSIVE Bone Conduction Headphones K08-13:
| Feature | Specification |
|---|---|
| Model Name | K08-13 |
| Connectivity Technology | Wireless (Bluetooth) |
| Bluetooth Version | 5.4 |
| Bluetooth Range | Up to 10 meters (33 feet) |
| Audio Driver Type | Bone Conduction Driver |
| Battery Life | Up to 12 hours (music/calls) |
| Standby Time | Up to 240 hours |
| Charging Time | Approximately 2 hours |
| Water Resistance Level | IPX6 |
| Material | Plastic, Silicone |
| Item Weight | 3.2 ounces (approx. 90 grams) |
| Compatible Devices | Tablets, Telephones, Smart Speakers, Cellphones |
| Control Method | Push Button |
| Ear Placement | Open Ear |
9. Warranty and Support
CHENSIVE products are designed for reliability and performance. For warranty information or technical support, please refer to the contact details provided with your purchase or visit the official CHENSIVE website. Please retain your proof of purchase for any warranty claims.
If you experience any issues not covered in this manual, please contact customer support for assistance.
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