1. Introduction
Thank you for choosing the COTAO X10 Bone Conduction Headphones. These headphones are designed to provide a unique audio experience, transmitting sound through your cheekbones directly to your inner ear, leaving your ears open to ambient sounds. This manual provides detailed instructions for setup, operation, and maintenance to ensure optimal performance and longevity of your device.
2. Safety Information
- Do not disassemble, repair, or modify the device.
- Keep the device away from extreme temperatures, direct sunlight, and moisture.
- Avoid listening at high volume levels for extended periods to prevent hearing damage.
- Use only the provided charging cable.
- Ensure the charging port is dry before charging to prevent damage.
3. Package Contents
Please check the package for the following items:
- COTAO X10 Bone Conduction Headphones
- Charging Cable
- Wireless Charging Case
- User Manual (This document)
4. Product Overview
The COTAO X10 headphones feature an ergonomic behind-neck design for comfortable wear during various activities, including swimming. They incorporate a digital display for battery status and mode indication, Bluetooth 5.3 connectivity, and 32GB of built-in memory for MP3 playback.

Figure 4.1: COTAO X10 Bone Conduction Headphones (Blanc)
This image displays the COTAO X10 Bone Conduction Headphones in their white (Blanc) color variant, featuring an orange accent band and an integrated digital display on the side.
Key Features:
- LED Digital Display: Shows battery percentage, Bluetooth mode, and MP3 mode.
- 300-Hour Standby Time: Extended battery life for prolonged use.
- Ergonomic Behind-Neck Design: Provides a secure and comfortable fit, suitable for sports and swimming.
- Multi-Device Compatibility: Connects to various Bluetooth-enabled devices.
- 32GB Built-in Memory: Allows for local music storage and playback without a connected device.
- HiFi High Fidelity Sound: Delivers clear and rich audio quality.
- Water Resistance: Designed to withstand water exposure, suitable for swimming.

Figure 4.2: Digital Display Indicators
This image illustrates the LED digital display on the headphones, highlighting indicators for battery level, Bluetooth mode, and MP3 mode.

Figure 4.3: 32GB Built-in Memory
An internal diagram of the headphones showcasing the integrated 32GB memory chip, enabling standalone music playback.

Figure 4.4: HiFi Sound Technology
This diagram visually represents the HiFi high fidelity sound technology integrated into the headphones, indicating advanced audio processing for clear sound.

Figure 4.5: Water Resistance Feature
A close-up image of the headphones covered in water droplets, demonstrating their water-resistant design suitable for use in wet conditions or during swimming.

Figure 4.6: Ergonomic and Flexible Design
This image highlights the 360-degree flexibility and ergonomic design of the headphones, ensuring a comfortable and secure fit for various head sizes and activities.
5. Setup
5.1 Initial Charging
- Before first use, fully charge the headphones.
- Connect the charging cable to the charging port on the headphones.
- Connect the other end of the cable to a USB power adapter (not included) or a computer's USB port.
- The LED display will indicate charging status. Once fully charged, the display will show 100%.
5.2 Bluetooth Pairing
- Ensure the headphones are powered off.
- Press and hold the Power button until the LED display shows "Bluetooth" and the indicator light flashes, indicating pairing mode.
- On your device (smartphone, tablet, etc.), enable Bluetooth and search for available devices.
- Select "COTAO X10" from the list of found devices.
- Once connected, the LED display will show "Bluetooth" steadily, and a voice prompt will confirm the connection.
6. Operating Instructions
6.1 Power On/Off
- Power On: Press and hold the Power button for 3 seconds.
- Power Off: Press and hold the Power button for 5 seconds.
6.2 Music Playback (Bluetooth Mode)
- Play/Pause: Press the Multi-function button once.
- Next Track: Press and hold the Volume Up button.
- Previous Track: Press and hold the Volume Down button.
- Volume Up: Short press the Volume Up button.
- Volume Down: Short press the Volume Down button.
6.3 Call Management
- Answer/End Call: Press the Multi-function button once.
- Reject Call: Press and hold the Multi-function button for 2 seconds.
- Voice Assistant: Double-press the Multi-function button.
6.4 MP3 Mode (Built-in Memory)
The headphones feature 32GB of built-in memory for storing music files. To transfer music, connect the headphones to a computer using the charging cable. The headphones will appear as a removable drive, allowing you to drag and drop audio files.
- Switch to MP3 Mode: While powered on, short press the Mode button (if available, or a specific button designated for mode switching). The LED display will show "MP3 mode".
- Music Playback: Use the same controls as Bluetooth mode for Play/Pause, Next/Previous Track, and Volume.
7. Maintenance
7.1 Cleaning
- Wipe the headphones with a soft, damp cloth.
- Do not use abrasive cleaners or solvents.
- Ensure the charging port is clean and dry before charging.
7.2 Storage
- Store the headphones in a cool, dry place away from direct sunlight.
- Avoid placing heavy objects on the headphones.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Headphones do not power on. | Low battery. | Charge the headphones fully. |
| Cannot pair via Bluetooth. | Headphones not in pairing mode; Bluetooth disabled on device; device too far. | Ensure headphones are in pairing mode. Enable Bluetooth on your device. Move device closer to headphones. |
| No sound. | Volume too low; headphones not connected; wrong mode. | Increase volume. Reconnect Bluetooth. Ensure correct mode (Bluetooth/MP3). |
| Music transfer issues. | Improper connection to computer; incompatible file format. | Ensure headphones are properly connected as a removable drive. Use compatible audio file formats (e.g., MP3, WAV). |
9. Specifications
| Feature | Detail |
|---|---|
| Model Name | COTAO X10 (HA-MX10) |
| Connectivity Technology | Wireless (Bluetooth 5.3) |
| Form Factor | Behind-Neck, Bone Conduction |
| Built-in Memory | 32GB |
| Battery Standby Time | Up to 300 hours |
| Included Components | Cable, Wireless Charging Case |
| Color | Blanc (White) |
| Dimensions | Approximately 30 x 20 x 5 cm (Parcel Dimensions) |
| Weight | Approximately 215 g (Parcel Weight) |
10. Warranty and Support
For warranty information and technical support, please refer to the warranty card included with your purchase or visit the official COTAO website. You may also contact customer service through your retailer for assistance.
Manufacturer: COTAO
ASIN: B0FPM7MW61