Introduction
Thank you for choosing the ESSONIO HM10-2 Bluetooth Bone Conduction Headset. This manual provides detailed instructions for setting up, operating, and maintaining your new headset. Designed for comfort and awareness, this open-ear headset uses advanced bone conduction technology to deliver sound while keeping your ears open to your surroundings. It is an ideal choice for various activities including office work, driving, and gaming.
Key Features:
- Unique Lightweight Design: Nearly weightless bone conduction headset for calls and music during work or driving.
- Long Battery Life: High-capacity charging case provides 8-10 hours of continuous music playback.
- Innovative and Compact: Painless to wear, protects the ear, suitable for users who find traditional earbuds uncomfortable.
- Advanced Bone Conduction Technology: Sound transmitted via cheekbones to the inner ear, maintaining environmental awareness.
- Advanced Bluetooth 5.0: Ensures a stronger and faster connection, compatible with smartwatches, tablets, and smartphones.
Package Contents
Please check the package for the following items:
- ESSONIO HM10-2 Bone Conduction Headset
- Charging Cable
- User Manual
Setup
1. Charging the Headset
Before first use, fully charge your ESSONIO HM10-2 headset. Connect the provided charging cable to the headset's charging port and a USB power source. The indicator light will show the charging status. A full charge typically takes approximately 1-2 hours and provides 8-10 hours of continuous playback.

Image: Product dimensions and internal battery capacity (380mAh).
2. Pairing with a Bluetooth Device
- Ensure the headset is charged and turned off.
- Press and hold the power button on the headset until the indicator light flashes blue and red, indicating it is in pairing mode.
- On your device (smartphone, tablet, computer), enable Bluetooth and search for available devices.
- Select "ESSONIO HM10-2" from the list of found devices.
- Once connected, the indicator light on the headset will turn solid blue or flash blue slowly.
- If prompted for a password, enter "0000".

Image: The ESSONIO HM10-2 headset, ready for use.
Operating the Headset
1. Wearing the Headset
The HM10-2 features an open-ear design for comfortable, painless wearing. Place the headset over your ears so that the bone conduction transducers rest on your cheekbones, just in front of your ears. Adjust for a secure and comfortable fit.

Image: Open Ear Design for painless wearing.

Image: Headset compatible with glasses users.
2. Basic Controls
The headset features physical buttons for control. Specific button functions may vary slightly, but generally include:
- Power Button: Press and hold to turn on/off. Short press for play/pause or answer/end calls.
- Volume Up/Next Track: Short press for volume up. Long press for next track.
- Volume Down/Previous Track: Short press for volume down. Long press for previous track.
3. Making and Receiving Calls
- Answer Call: Short press the Power button when a call comes in.
- End Call: Short press the Power button during a call.
- Reject Call: Press and hold the Power button for 2 seconds when a call comes in.
- Redial Last Number: Double-press the Power button.

Image: Headset in use while driving, enabling hands-free communication.
4. Listening to Music
Once connected to your device, you can play music. Use the headset's controls or your device to manage playback.
- Play/Pause: Short press the Power button.
- Next Track: Long press the Volume Up button.
- Previous Track: Long press the Volume Down button.

Image: Enjoying quality stereo sound during exercise.
Maintenance
Proper maintenance ensures the longevity of your headset.
- Cleaning: Wipe the headset with a soft, dry cloth. Do not use harsh chemicals or abrasive materials.
- Water Resistance: This headset is NOT waterproof. Avoid exposure to water, rain, or excessive moisture.
- Storage: Store the headset in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: To preserve battery life, charge the headset regularly, even if not in use for extended periods. Avoid fully discharging the battery frequently.
Troubleshooting
If you encounter issues with your headset, please refer to the following common solutions:
| Problem | Solution |
|---|---|
| Headset won't turn on | Ensure the headset is fully charged. Press and hold the power button for a few seconds. |
| Cannot pair with device | Ensure the headset is in pairing mode (flashing blue/red). Turn off and on your device's Bluetooth. Move the headset closer to your device. Forget previous pairings on your device and try again. |
| No sound or low volume | Check the volume levels on both the headset and your connected device. Ensure the headset is properly connected. Try re-pairing the headset. |
| Intermittent connection | Ensure you are within the Bluetooth range (up to 10 meters). Avoid obstacles between the headset and your device. Reduce interference from other wireless devices. |
| Charging issue | Verify the charging cable is securely connected. Try a different USB port or power adapter. Ensure the charging port on the headset is clean. |
Specifications
Technical specifications for the ESSONIO HM10-2 Bluetooth Bone Conduction Headset:
| Feature | Detail |
|---|---|
| Model Number | HM10-2 |
| Brand | ESSONIO |
| Color | Gold |
| Connectivity Technology | Wireless |
| Wireless Technology | Bluetooth |
| Bluetooth Version | 5.0 |
| Bluetooth Range | 10 Meters |
| Audio Driver Type | Bone Conduction |
| Form Factor | True Wireless, Open Ear |
| Control Type | Physical Buttons |
| Control Method | Remote Control |
| Battery | 1 Lithium Polymer (included) |
| Battery Life | 8-10 hours continuous playback (with high-capacity charging case) |
| Water Resistance Level | Not Waterproof |
| Compatible Devices | Desktop computers, Laptops, Tablets, Smartphones |
| Included Components | Cable |
| Internal Material | Thermoplastic Elastomer (TPE) |
| Frequency Range | 2402 MHz - 4450 MHz |
Warranty and Support
Warranty Information
Specific warranty details for the ESSONIO HM10-2 headset may vary by region and retailer. Please refer to the warranty card included with your product or contact your point of purchase for information regarding warranty coverage and terms.
Customer Support
For technical assistance, troubleshooting not covered in this manual, or other inquiries, please contact ESSONIO customer support through the retailer where you purchased the product or visit the official ESSONIO website for contact information.