Back Bay Audio Back Bay Duet 50 Pro
Back Bay Audio Duet 50 Pro Wireless Earbuds User Manual
Model: Back Bay Duet 50 Pro | Brand: Back Bay Audio
Introduction
Welcome to the user manual for your Back Bay Audio Duet 50 Pro Wireless Earbuds. These earbuds are designed to provide a high-quality audio experience with extended battery life and robust features for active lifestyles. This manual will guide you through setup, operation, maintenance, and troubleshooting to ensure optimal performance.

Image: Back Bay Audio Duet 50 Pro Earbuds and Charging Case, showcasing their sweatproof design.
What's in the Box
Your Back Bay Audio Duet 50 Pro package includes the following items:
- Back Bay Audio Duet 50 Pro Earbuds
- Charging Station (Case)
- USB-C Charging Cable
- Multiple Sizes of Eartips (XS, S, M, L, XL)
- User Manual (this document)
Setup
1. Initial Charging
Before first use, fully charge your Duet 50 Pro earbuds and charging case. The case provides up to 130 hours of total playtime. Use the included USB-C cable to charge the case.

Image: The Duet 50 Pro earbuds and charging case, emphasizing their impressive 130-hour battery life.
The charging case can also be used as a power source to charge your cell phone on the go using the included charging converter cable.

Image: The Duet 50 Pro charging case being used to charge a smartphone, illustrating its power bank feature.
2. Pairing with Your Device
- Open the charging case. The earbuds will automatically enter pairing mode.
- On your device (smartphone, tablet, computer), go to Bluetooth settings.
- Select "Back Bay Duet 50 Pro" from the list of available devices.
- Once connected, you will hear an audio prompt confirming successful pairing.
The earbuds utilize Bluetooth 5.0 for a stable and efficient connection.
3. Achieving the Best Fit
For optimal sound quality and comfort, select the eartips that best fit your ears. Your Duet 50 Pro comes with 5 different sizes (XS, S, M, L, XL).

Image: A selection of eartips in different sizes, illustrating the customizable fit options for the earbuds.
Operating Your Earbuds
Music and Call Control
The Duet 50 Pro earbuds feature intuitive button controls for managing your audio and calls:
- Play/Pause: Single press on either earbud.
- Next Track: Double press on the right earbud.
- Previous Track: Double press on the left earbud.
- Answer/End Call: Single press on either earbud.
- Reject Call: Press and hold on either earbud.
- Activate Voice Assistant (Siri/Google Assistant): Triple press on either earbud.

Image: A user demonstrating the control features of the Duet 50 Pro, highlighting dual microphones and cVc Noise Cancellation for clear calls.
Sound Quality
Experience the Back Bay Signature Sound, tuned in Boston to deliver a rich audio profile with strong bass, natural midrange, and crisp highs. This tuning provides a full, vibrant sound for all your music genres.

Image: The Duet 50 Pro charging case, emphasizing its "Tuned in Boston" sound signature and Apt-X Audio support.
Maintenance
To ensure the longevity and performance of your Duet 50 Pro earbuds, follow these maintenance guidelines:
- Cleaning: Gently wipe the earbuds and charging case with a soft, dry cloth. Avoid using harsh chemicals or abrasive materials.
- Sweatproof Design: The earbuds feature an IPX-5 rated sweatproof nano-coating, making them suitable for workouts and light rain.
- Important Note: These earbuds are not designed for swimming or submersion in water.
- Charging Case Care: Always ensure earbuds are dry before placing them back into the charging case to prevent damage.

Image: A runner using Duet 50 Pro earbuds in rainy conditions, demonstrating their IPX-5 sweatproof rating.
Troubleshooting
If you encounter any issues with your Duet 50 Pro earbuds, please refer to the following common solutions:
| Problem | Solution |
|---|---|
| Earbuds not pairing | Ensure earbuds are fully charged. Turn off and on Bluetooth on your device. Place earbuds back in the case, close, then reopen to re-enter pairing mode. |
| No sound from one earbud | Ensure both earbuds are charged. Try resetting the earbuds by placing them in the case and closing it for a few seconds. Re-pair with your device. |
| Charging case not charging | Verify the USB-C cable is securely connected to both the case and a power source. Try a different cable or power adapter. |
| Earbuds falling out of ear | Experiment with different sizes of eartips provided to find the most secure and comfortable fit for your ear canal. |
Specifications
| Feature | Detail |
|---|---|
| Model Name | Back Bay Duet 50 Pro |
| Connectivity Technology | Bluetooth 5.0 |
| Battery Life (Earbuds) | 8 hours (single charge) |
| Battery Life (with Charging Case) | Up to 130 hours |
| Charging Case Battery Capacity | 2600 Milliamp Hours |
| Charging Case Charging Time | 2 Hours |
| Noise Control | Sound Isolation |
| Microphones | Dual Microphones with cVc Noise Cancellation |
| Water Resistance Level | IPX-5 (Sweatproof) |
| Control Type | Button Control |
| Audio Driver Size | 10 Millimeters |
| Frequency Response | 20-20000 Hz |
| Item Weight | 4 Grams (earbud) |
| Product Dimensions | 2.9 x 1.8 x 1.1 inches (case) |
| Material | Premium ABS Plastic |
Safety Information
Please observe the following safety precautions:
- Ensure earbuds are dry before being inserted into the charging case to prevent damage.
- Do not expose the earbuds or charging case to extreme temperatures or direct sunlight for prolonged periods.
- Avoid dropping or subjecting the device to strong impacts.
- Do not attempt to disassemble or modify the earbuds or charging case. This will void the warranty.
- Keep out of reach of children and pets.
Warranty and Support
Back Bay Audio provides a 1-year warranty for the Duet 50 Pro against manufacturing defects. For warranty claims or technical support, please visit the official Back Bay Audio website or contact their customer service.
You can also refer to the official User Manual (PDF) available at: https://manuals.plus/m/b2378108752a7a760ef6b7198132bbf6b942cfeee9d191e0c922262ec21bafea
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