Cellet Overhead Boom Mic Wireless Headset
User Manual
1. Product Overview
The Cellet Overhead Boom Mic Wireless Headset is designed for clear communication and comfortable all-day use. It features noise reduction and echo cancelling technology, a long-lasting battery, and dual-mode connectivity (wireless and wired) for versatile use across various devices.

Image: The Cellet Overhead Boom Mic Wireless Headset, showcasing its sleek black design and adjustable boom microphone.
Key Features:
- Dual Mode Convenience: Seamlessly switch between wireless (up to 30ft range) and wired mode.
- Noise Reduction & Echo Cancelling: Ensures clear calls even in noisy environments.
- Extended Battery Life: Up to 34 hours of talk time and 400 hours of standby time.
- Fast USB-C Charging: Fully charges in approximately 1.5 hours.
- Superior Comfort: Features an adjustable headband, soft ear pads, and an anti-slip design for prolonged wear.
- Multi-Function Controls: Easy handling of calls, music playback, and mute function.
- Wide Compatibility: Works with PCs, laptops, smartphones, and tablets.
2. Setup Guide
2.1 What's in the Box
- Cellet Overhead Boom Mic Wireless Headset
- USB-C Charging Cable
- 3.5mm Audio Cable (if included with your model)
2.2 Charging the Headset
Before first use, fully charge the headset. Connect the provided USB-C charging cable to the headset's USB-C charging port and the other end to a compatible USB power source (e.g., computer USB port, wall adapter). The LED indicator will show charging status and turn off when fully charged. A full charge takes approximately 1.5 hours.

Image: Visual representation of the headset's talk time (up to 34 hours), standby time (up to 400 hours), charging time (about 1.5 hours), and Bluetooth range (30ft/10m).
2.3 Connecting the Headset
The headset supports both wireless (Bluetooth) and wired (3.5mm audio cable) connections.
Wireless Mode (Bluetooth Pairing)
- Ensure the headset is charged and powered off.
- Press and hold the Multi-Function Button (MFB) until the LED indicator flashes blue and red, indicating pairing mode.
- On your device (smartphone, laptop, etc.), enable Bluetooth and search for new devices.
- Select "Cellet EBBOOM100" (or similar name) from the list of available devices.
- Once connected, the LED indicator will turn solid blue.
Wired Mode (3.5mm Audio Cable)
For devices without Bluetooth or when battery is low, use the 3.5mm audio cable. Simply plug one end into the headset's 3.5mm jack and the other end into your device's audio output.

Image: A comparison showing the headset operating in wireless mode with a 30ft range and wired mode using a USB-C to 3.5mm cable for wide compatibility.
3. Operating Instructions
3.1 Controls and Functions

Image: Diagram illustrating the multi-function button (MFB), volume up/next song, volume down/previous song, mute button & LED indicator, and USB-C charging port on the headset.
| Button/Control | Function |
|---|---|
| Multi-Function Button (MFB) | Power On/Off (long press), Play/Pause (single press), Answer/End Call (single press), Reject Call (long press), Activate Voice Assistant (double press) |
| Volume + / Next Song | Increase Volume (single press), Next Song (long press) |
| Volume - / Previous Song | Decrease Volume (single press), Previous Song (long press) |
| Mute Button | Mute/Unmute Microphone (single press) |
3.2 Microphone Usage
The boom microphone can rotate 270 degrees, allowing it to be positioned for use with either the left or right ear. Adjust the microphone closer to your mouth for optimal voice clarity during calls or recordings.
3.3 Noise Reduction and Echo Cancelling
The headset incorporates advanced noise reduction and echo cancelling features to minimize ambient sound and ensure your voice is transmitted clearly. This is particularly beneficial in busy office environments or when working remotely.

Image: A man wearing the Cellet headset in an office setting, illustrating the effectiveness of noise reduction and echo cancelling technology for clear communication.
4. Maintenance and Care
Proper maintenance ensures the longevity and optimal performance of your headset.
- Cleaning: Use a soft, dry cloth to wipe down the headset. For ear pads, a slightly damp cloth with mild soap can be used, but ensure they are completely dry before use. Avoid harsh chemicals or abrasive materials.
- Storage: Store the headset in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: To preserve battery life, avoid fully discharging the headset frequently. Charge it regularly, even if not in constant use.
- Water Resistance: The headset has a water-resistant level. While it can withstand minor splashes, avoid submerging it in water or exposing it to heavy rain.
5. Troubleshooting
If you encounter issues with your Cellet headset, refer to the following common solutions:
- Headset will not power on: Ensure the headset is fully charged. Connect it to a power source and allow it to charge for at least 15 minutes before attempting to power on again.
- Cannot pair with device:
- Ensure the headset is in pairing mode (LED flashing blue and red).
- Make sure Bluetooth is enabled on your device and it is within the 30ft range.
- Forget the headset from your device's Bluetooth list and attempt to pair again.
- Restart both the headset and your device.
- No audio or poor audio quality:
- Check the volume levels on both the headset and your connected device.
- Ensure the headset is properly connected (either via Bluetooth or 3.5mm cable).
- If using wired mode, ensure the 3.5mm cable is fully inserted into both ports.
- Move closer to your device if in wireless mode to avoid interference.
- Microphone not working:
- Ensure the microphone is not muted (check the mute button and LED indicator).
- Verify that the correct audio input device is selected in your computer or smartphone settings.
- Adjust the position of the boom microphone.
6. Specifications
| Feature | Detail |
|---|---|
| Model Number | EBBOOM100 |
| Brand | Cellet |
| Connectivity Technology | Wireless, Wired (3.5 mm Jack) |
| Wireless Communication | Bluetooth 4.0 |
| Bluetooth Range | 30 Feet |
| Noise Control | Active Noise Cancellation |
| Battery Life (Talk Time) | Up to 34 Hours |
| Frequency Range | 20 Hz - 20,000 Hz |
| Impedance | 8 Ohm |
| Item Weight | 0.353 ounces (approx. 10 grams) |
| Water Resistance Level | Water Resistant |
| Ear Placement | On Ear |
| Form Factor | Padded On Ear |
| Material | Velvet (ear pads) |
7. Warranty and Support
For information regarding warranty coverage, returns, or technical support, please refer to the product packaging or visit the official Cellet website. Keep your purchase receipt as proof of purchase for any warranty claims.
Manufacturer: Cellet