Introduction
Thank you for choosing the Earbay BT786CD Wireless Headset. This manual provides essential information for setting up, operating, and maintaining your headset to ensure optimal performance and longevity. Please read these instructions carefully before use.

The Earbay BT786CD Wireless Headset is designed for comfort and clear communication during extended use.
What's in the Box
- 1 × Wireless Headset with Mic
- 1 × USB Charging Cable (USB-C)
- 1 × USB Dongle
- 1 × Charging Base
- 1 × User Manual

The package includes the headset, charging base, USB dongle, and necessary cables for charging and connection.
Product Overview
Components and Controls
Familiarize yourself with the key components and controls of your Earbay BT786CD headset:
- Adjustable Headband: For a comfortable and secure fit.
- Soft Leather Ear Pads: Designed for extended wear comfort.
- Flexible Microphone: 270° rotatable with noise-cancelling technology.
- Volume Control: Integrated buttons for easy audio adjustment.
- Power Button: For turning the headset on/off.
- Multi-Function Button (MFB): For call management and other functions.
- Mute Button: Located on the microphone for quick muting.
- USB-C Charging Port: For direct charging.

Detailed view of the headset's controls and adjustable microphone.

The headset features an adjustable headband and a flexible microphone for personalized comfort and clear audio.
Setup & Connection
Bluetooth Connection (for Mobile Devices/Tablets)
- Ensure the headset is charged and powered off.
- Press and hold the Power Button until the LED indicator flashes blue and red, indicating pairing mode.
- On your device (phone/tablet), go to Bluetooth settings and search for "BT786CD".
- Select "BT786CD" to connect. The LED will turn solid blue once connected.
USB Dongle Connection (for PC/Laptop)
- Plug the USB dongle into an available USB port on your PC/laptop.
- The dongle's LED indicator will flash blue.
- Power on your headset. It will automatically pair with the dongle. The LED on the dongle will turn solid blue once connected.
- On your PC, navigate to Sound Settings and set "BT786CD" as the default input and output device.

Visual guide for connecting the headset to a PC using either Bluetooth or the USB dongle.
Official Product Video: Setup and Features
This video from Earbay-Direct provides a visual guide to the headset's features and setup process, including Bluetooth connectivity.
Operating Instructions
Power On/Off
- Power On: Press and hold the Power Button for 3 seconds until the LED indicator flashes blue.
- Power Off: Press and hold the Power Button for 3 seconds until the LED indicator flashes red and then turns off.
Volume Control
- Increase Volume: Press the Volume Up button.
- Decrease Volume: Press the Volume Down button.
Microphone Mute
- Press the Mute Button on the microphone to mute or unmute your voice during calls.

The microphone features a convenient one-key mute button for quick control during calls.
Charging
Charge your headset using the provided USB-C cable and charging base:
- Connect the USB-C cable to the charging base and a power source.
- Place the headset on the charging base, ensuring the charging contacts align.
- Alternatively, plug the USB-C cable directly into the headset's charging port.
- The LED indicator will show charging status (e.g., red for charging, blue for fully charged).
- A full charge takes approximately 2 hours.

The headset can be charged conveniently using the included charging base or directly via the USB-C cable.
Features & Benefits
- All-Day Comfort: Designed with soft leatherette ear cushions and an adjustable headband for comfortable wearing during intensive use.
- AI Noise Cancellation: Blocks out up to 99% of ambient noise on calls, ensuring crystal-clear communication.
- Dual Device Connection: Connects to two devices simultaneously for seamless switching between calls and media.
- Long-Lasting Battery: Offers up to 26 hours of talk time and 200 hours of standby time on a single 1.5-hour charge.
- Wide Compatibility: Works with various devices including computers, PCs, laptops, mobile phones, tablets, VoIP, and desktops. Compatible with popular meeting apps like Zoom, Skype for Business, Unify, Microsoft Teams, Google Meet, Bluejeans, GoToMeeting, 3CX, FaceTime, WhatsApp, and Slack.
- Easy to Use Controls: Intuitive volume control, power button, and microphone mute for convenient operation.

The headset is engineered for all-day comfort, making it ideal for prolonged use in various work environments.

AI Noise Cancellation ensures clear audio by blocking out ambient sounds, as depicted in the 'Before' and 'After' sound wave comparison.

Enjoy extended usage with up to 26 hours of talk time and 200 hours of standby time on a single charge.
Maintenance
- Clean the headset regularly with a soft, dry cloth.
- Avoid exposing the headset to extreme temperatures, moisture, or corrosive substances.
- Store the headset in its soft storage pouch when not in use to protect it from dust and damage.
- Do not attempt to disassemble or repair the headset yourself. Contact customer support for assistance.
Troubleshooting
No Sound/Poor Audio Quality
- Ensure the headset is powered on and properly connected (Bluetooth or USB dongle).
- Check the volume levels on both the headset and your connected device.
- Verify that the headset is selected as the default audio input/output device in your computer's sound settings.
- Move closer to your connected device to ensure you are within the 15-meter Bluetooth range.
- If using the USB dongle, try plugging it into a different USB port.
Microphone Not Working
- Ensure the microphone is not muted (check the mute button on the mic).
- Verify that the headset's microphone is selected as the default input device in your computer's sound settings or meeting application settings.
- Adjust the microphone's position closer to your mouth for better pickup.
Headset Not Pairing
- Ensure the headset is in pairing mode (LED flashing blue and red).
- Turn off and on your device's Bluetooth, then try pairing again.
- If using a PC, ensure your Bluetooth drivers are up to date or use the provided USB dongle.
Specifications
| Model Name | BT786CD |
| Connectivity Technology | Wireless (Bluetooth 6.0) |
| Bluetooth Range | 15 Meters |
| Noise Control | Passive Noise Cancellation, Active Noise Control |
| Battery Life (Talk Time) | 26 Hours |
| Charging Time | 2 Hours |
| Headphones Jack | USB-C |
| Earpiece Shape | On Ear |
| Material | Aluminum |
| Item Weight | 1.06 pounds |
Warranty & Support
For warranty information or technical support, please refer to the contact details provided with your purchase or visit the official Earbay website. If you have any questions or concerns, please contact customer service for prompt assistance.