Package Contents
Please verify that all items are present in your package:
- COMEXION Bluetooth Headset (BH-M100)
- USB-C Charging Cable
- User Manual
Setup
1. Charging the Headset
Before first use, fully charge your headset. A full charge takes approximately 1.5 hours.
- Connect the provided USB-C charging cable to the headset's Type-C Charge Port.
- Connect the other end of the cable to a USB power source (e.g., computer USB port, wall adapter).
- The LED indicator will show red during charging and turn blue when fully charged.

Figure 3: Headset battery life indicators, including 1.5 hours charging time.
2. Pairing with Your Device
The BH-M100 uses Bluetooth 5.0 for quick, efficient, and stable connections. It can pair with two devices simultaneously.
- Power On: Long press the Multi-Function Button (MFB) until the LED indicator flashes blue and red alternately, indicating pairing mode.
- Activate Bluetooth: On your device (smartphone, laptop, tablet), enable Bluetooth.
- Search and Connect: In your device's Bluetooth settings, search for "BH-M100" and select it to connect.
- Confirmation: Once connected, the LED indicator on the headset will turn solid blue. You will also hear an audible confirmation.

Figure 4: The headset supports simultaneous connection to two devices.
Note: If connecting to a PC without built-in Bluetooth, a USB dongle (not included with BH-M100, available with BH-M100 with Dongle variant) may be required.
Operating Instructions
Call Management
- Answer/End Call: Press the MFB once.
- Reject Call: Long press the MFB.
- Mute/Unmute Microphone: Press the Microphone Mute Button once. (Note: Mute function on BH-M100 without Dongle is only for cell phones. For PC applications like Skype or Zoom, mute via software settings.)
Volume Control
- Increase Volume: Press the Volume + button.
- Decrease Volume: Press the Volume - button.
Microphone Adjustment
The 270° rotatable microphone allows for flexible positioning on either the right or left side, ensuring optimal voice pickup.

Figure 5: The directional microphone can be adjusted for optimal voice clarity and muted during conversations.
Comfort and Wearing
The headset is designed for all-day comfort with soft protein leather earmuffs and an adjustable headband.
- Adjust the headband to fit comfortably over your head.
- Position the ear cup over one ear, allowing the other ear to remain open to your surroundings.
- Rotate the microphone boom to align with your mouth for clear communication.

Figure 6: Features ensuring comfort for all-day wear, including adjustable headband, soft ear pad, anti-slip pad, and 270° rotatable microphone.
Maintenance
To ensure the longevity and optimal performance of your headset, follow these maintenance guidelines:
- Clean the ear pads and headband regularly with a soft, dry cloth.
- Avoid exposing the headset to extreme temperatures, humidity, or direct sunlight.
- Do not use abrasive cleaners or solvents.
- Store the headset in a cool, dry place when not in use.