1. Introduction
Thank you for choosing the Link Dream B45 Bluetooth Earpiece. This manual provides comprehensive instructions to help you set up, operate, and maintain your new wireless headset. The B45 earpiece features CVC8.0 and ENC dual-microphone noise cancellation for clear calls, extended battery life, and a comfortable, lightweight design for all-day wear.

Image 1.1: The Link Dream B45 Bluetooth Earpiece and its protective charging case.
2. Package Contents
Please check the package contents to ensure all items are present:
- Link Dream B45 Bluetooth Earpiece
- Protective Case
- USB Charging Cable
- Multiple Sizes of Ear Tips (3 different sizes, plus 1 special tip for small ears)
- Silicone Ear Hook (Soft)
- Arcuated Ear Hook (Comfortable)
- User Manual (This document)

Image 2.1: All accessories included with the Link Dream B45 Bluetooth Earpiece.
3. Product Overview
Familiarize yourself with the buttons and indicators on your Link Dream B45 earpiece.

Image 3.1: Key controls and features of the Link Dream B45 earpiece.
- Power ON/OFF Switch: Located on the side for easy control.
- Function Key: Multi-purpose button for various operations (e.g., answer/end calls, activate voice assistant).
- Microphone Mute Key: For muting the microphone during calls.
- Volume Up/Down Buttons: Adjusts audio volume and can also be used for track control.
- Charging Port: USB-C port for charging the device.
- LED Indicator: Displays pairing status, charging status, and other notifications.
4. Setup
4.1 Charging the Earpiece
Before first use, fully charge your Link Dream B45 earpiece.
- Connect the USB charging cable to the earpiece's charging port and a power source (e.g., computer USB port, wall adapter).
- The LED indicator will show charging status (e.g., red for charging, blue for fully charged).
- A full charge takes approximately 2 hours.
Once fully charged, the earpiece provides up to 20 hours of talk time, 24 hours of music playback, and an impressive 180 days of standby time. A low battery reminder is also available.

Image 4.1: Battery performance details for the B45 earpiece.
4.2 Pairing with a Device
Follow these steps to connect your B45 earpiece to your smartphone, tablet, or laptop.
- Ensure the earpiece is charged and turned off.
- Slide the Power ON/OFF switch to the "ON" position. The LED indicator will flash blue and red alternately, indicating it is in pairing mode.
- On your device (phone, tablet, laptop), go to the Bluetooth settings and enable Bluetooth.
- Search for available devices. You should see "Link Dream B45" or a similar name in the list.
- Select "Link Dream B45" to connect. Once connected, the LED indicator will flash blue slowly, and you will hear a confirmation tone.
- The earpiece features a stable Bluetooth V5.0 connection, providing a wireless range of up to 15 meters (approximately 49 feet) in open spaces.

Image 4.2: Bluetooth connection range and device compatibility.
5. Operating Instructions
5.1 Making and Answering Calls
- Answer Call: Press the Function Key once.
- End Call: Press the Function Key once during a call.
- Reject Call: Press and hold the Function Key for 2 seconds.
- Redial Last Number: Double-press the Function Key.
- Mute/Unmute Microphone: Press the Microphone Mute Key during a call.
The B45 earpiece features ENC and CVC8.0 dual-microphone noise reduction technology, which effectively reduces external distractions and optimizes sound clarity for both you and the person you are speaking with.

Image 5.1: Explanation of CVC8.0 Dual Mic Noise Cancellation.
5.2 Voice Assistant Activation
- Activate Voice Assistant (Siri/Google Assistant): Press and hold the Function Key for 2 seconds when not on a call.
5.3 Music Playback
- Play/Pause: Press the Function Key once.
- Volume Up: Press the Volume Up button.
- Volume Down: Press the Volume Down button.
- Next Track: Press and hold the Volume Up button.
- Previous Track: Press and hold the Volume Down button.

Image 5.2: Demonstrating hands-free calling and voice assistant features.
6. Wearing Instructions
The Link Dream B45 is designed for comfortable and secure wear. It can be worn on either the left or right ear.
- Choose the ear tip and ear hook that best fits your ear for optimal comfort and sound quality. The package includes multiple sizes and two types of ear hooks (soft silicone and arcuated).
- Attach the chosen ear hook to the earpiece.
- Gently place the earpiece into your ear canal and adjust the ear hook over your ear until it feels secure and comfortable.
- Ensure the microphone is pointing towards your mouth for clear voice pickup.

Image 6.1: Illustrating the comfortable and secure fit for both left and right ears.

Image 6.2: Guide to correct wearing position for best performance.
7. Maintenance
Proper care will extend the life of your Link Dream B45 earpiece.
- Cleaning: Use a soft, dry, lint-free cloth to clean the earpiece. Do not use harsh chemicals or abrasive materials.
- Ear Tips: Regularly remove and clean the ear tips with a damp cloth and mild soap, then dry thoroughly before reattaching.
- Storage: When not in use, store the earpiece in its protective case to prevent damage.
- Avoid Moisture: Keep the earpiece away from water, excessive humidity, and extreme temperatures.
- Charging: Only use the provided charging cable or a certified equivalent.
8. Troubleshooting
If you encounter issues with your B45 earpiece, refer to the following common solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Earpiece does not turn on. | Low battery. | Charge the earpiece for at least 2 hours. |
| Cannot pair with device. | Earpiece not in pairing mode; Bluetooth off on device; device too far. | Ensure earpiece is in pairing mode (flashing blue/red). Turn on Bluetooth on your device. Move device closer to earpiece (within 15m). |
| No sound or poor sound quality. | Volume too low; earpiece not properly seated; interference. | Increase volume on both earpiece and device. Adjust earpiece position. Move away from other wireless devices. |
| Microphone not working during calls. | Microphone muted; earpiece not selected as audio input. | Press the Mute Key to unmute. Check your device's audio settings to ensure the B45 is selected for calls. |
| Intermittent connection. | Out of range; obstacles; low battery. | Move closer to your device. Ensure no major obstacles (walls, metal) are between devices. Charge the earpiece. |
9. Specifications
| Feature | Detail |
|---|---|
| Model Name | B45 |
| Brand | Link Dream |
| Connectivity Technology | Wireless (Bluetooth) |
| Wireless Communication Technology | Bluetooth 5.0 |
| Bluetooth Range | 15 Meters |
| Noise Control | Environmental Noise Cancellation (ENC), CVC8.0 |
| Microphone | Dual Mic |
| Charging Time | 2 Hours |
| Talk Time | Up to 20 Hours |
| Music Playback Time | Up to 24 Hours |
| Standby Time | Up to 180 Days |
| Item Weight | 13 Grams (0.459 ounces) |
| Material | Plastic |
| Ear Placement | In Ear (with ear hook) |
| Control Type | Push Button, Media Control, Siri |
| Included Components | Protective Case |
| Compatible Devices | iPhone, Android Cellphones, Laptops, Tablets |
| Frequency Range | 20 Hz - 20,000 Hz |
| Impedance | 13 Ohm |
| Battery Type | 1 Lithium Polymer battery (included) |
10. Warranty and Support
The Link Dream B45 Bluetooth Earpiece comes with a 3-year warranty service.
If you encounter any issues or have questions regarding your product, please contact Link Dream customer service. You can typically find contact information on the product packaging, the official Link Dream website, or through your purchase platform. Please have your purchase details and product model number (B45) ready when contacting support for faster assistance.
Link Dream aims to provide quick customer service within 24 hours.





