Poly Sync 40+ Bluetooth Smart Speakerphone
User Manual
Product Overview
The Poly Sync 40+ is a versatile USB/Bluetooth smart speakerphone designed for flexible workspaces. It offers high-quality audio for calls and multimedia, featuring a multi-microphone array for echo and noise reduction, and full-duplex audio for clear conversations.

Figure 1: Front view of the Poly Sync 40+ speakerphone, showcasing its sleek design and illuminated light bar.
Key features include:
- Superior Audio: Multiple microphones for echo and noise reduction, ensuring clear voice pickup. High-performance speaker for rich audio.
- Flexible Connectivity: Connects to smartphones via Bluetooth, and to computers via a combined USB-A/USB-C cable or the included BT600 Bluetooth adapter.
- Portability: Internal battery provides up to 20 hours of talk time.
- Scalability: Wirelessly pair two units for larger meeting spaces.
- Durability: IP64 dust- and water-resistant rating.
- Intuitive Controls: Highly visible light bar for call status and a programmable button for custom functions.
Package Contents
Ensure all items are present in the package:
- Poly Sync 40+ speakerphone
- BT600 Bluetooth USB adapter
- USB-A to USB-C adapter
Setup
Charging the Device
Before first use, fully charge the Poly Sync 40+ speakerphone. Connect the integrated USB cable to a power source (computer USB port or USB wall adapter). The light bar will indicate charging status.
Connecting to a Computer
- Via USB Cable: Connect the integrated USB-A or USB-C cable directly to your computer's USB port. The device will be recognized automatically.
- Via BT600 Bluetooth Adapter:
- Insert the BT600 USB adapter into a USB port on your computer. The adapter comes pre-paired with the Sync 40+.
- The light on the BT600 adapter will turn solid blue when connected.
- For optimal performance, ensure the BT600 adapter is used, as it provides a more consistent audio experience than direct PC/Mac Bluetooth connection.
Connecting to a Smartphone (Bluetooth)
- Power on the Poly Sync 40+.
- Press and hold the Bluetooth button on the speakerphone until the light bar flashes blue.
- On your smartphone, go to Bluetooth settings and select "Poly Sync 40+" from the list of available devices.
- The light bar will turn solid blue when successfully paired.

Figure 2: Side view of the Poly Sync 40+, illustrating the integrated USB cable for connectivity and charging.
Operating Instructions
Controls and Indicators

Figure 3: Top view of the Poly Sync 40+ showing the control panel with illuminated buttons and light bar.
| Button/Indicator | Function |
|---|---|
| Bluetooth Button | Press and hold to enter pairing mode. |
| Volume Down (-) | Decreases audio volume. |
| Mute Button | Mutes or unmutes the microphone. |
| Volume Up (+) | Increases audio volume. |
| Programmable Button | Default: Play/Pause music. Can be customized for last-number redial, voice assistant, or clearing paired Bluetooth devices (for common areas). |
| Call Button | Answers or ends a call. |
| Light Bar | Indicates call status, battery level, and pairing mode. |
Making and Receiving Calls
- Answering a Call: Press the Call button.
- Ending a Call: Press the Call button.
- Muting Microphone: Press the Mute button. The light bar will change color to indicate mute status.
Using as a Power Bank
The Poly Sync 40+ can charge your smartphone. Connect your smartphone's charging cable to the USB-A port on the speakerphone.

Figure 4: Bottom view of the Poly Sync 40+, highlighting the integrated cable management and additional USB port for charging external devices.
Maintenance
- Cleaning: Wipe the device with a soft, dry, lint-free cloth. Do not use abrasive cleaners or solvents.
- Storage: Store the speakerphone in a cool, dry place away from direct sunlight and extreme temperatures.
- Water Resistance: The device is IP64 dust- and water-resistant. This means it is protected from dust ingress and splashing water from any direction. Do not submerge the device in water.
Troubleshooting
| Problem | Possible Solution |
|---|---|
| No audio from speakerphone. |
|
| Microphone not picking up sound. |
|
| Bluetooth connection issues. |
|
| Device not charging. |
|
Specifications
| Feature | Detail |
|---|---|
| Model Name | Sync 40+ |
| Model Number | 218765-01 |
| Connectivity | Bluetooth, USB (USB-A/USB-C) |
| Wireless Technology | Bluetooth |
| Battery Life (Talk Time) | Up to 20 hours |
| Speaker Type | High-performance built-in speaker |
| Speaker Maximum Output Power | 40 Watts |
| Water Resistance | IP64 (Dust and Water Resistant) |
| Dimensions (L x W x H) | 14.96"D x 40.16"W x 107.48"H (Note: These dimensions seem unusually large for a speakerphone, likely a data entry error in source. Using as provided.) |
| Item Weight | 610 Grams (1.34 pounds) |
| Included Components | Poly Sync 40+ speakerphone, BT600 Bluetooth USB adapter, USB-A to USB-C adapter |
| UPC | 197029536181, 017229175099 |
Warranty and Support
For detailed warranty information and technical support, please visit the official Poly website or refer to the warranty card included with your product.
You can also visit the Poly Store on Amazon for additional resources and product information.







