Poly Sync 40+ – Microsoft Teams Certified Speakerphone with BT700

Product Overview

The Poly Sync 40+ speakerphone with BT700 is the bundled build of Poly's Microsoft Teams certified huddle room speakerphone, shipping with the BT700 USB-A Bluetooth adapter so a room PC or laptop can connect wirelessly instead of over a cable. Part number 77P36AA covers a huddle room or small conference room with a three-microphone steerable array reaching up to 2.5 m (8 ft) and a 50 mm driver producing 89 dB SPL. The BT700 adapter is the reason to buy this SKU rather than the standard Teams model: it gives a deterministic, Poly-managed radio link to hosts whose native Bluetooth is unreliable, locked down by policy, or absent. For hot-desking and flexible workspaces where users arrive with a laptop and expect audio to work in seconds, this is the configuration that removes the cable from the table.

Product Description

Enterprise IT teams routinely disable or restrict native Bluetooth on managed endpoints, and even where it is enabled, the host radio is shared with mice, keyboards, and headsets and offers no visibility into link quality. The BT700 USB-A adapter sidesteps that entirely. It presents to the host as a dedicated Poly radio, pairs to the speakerphone out of the box, and is managed and updated alongside the speakerphone through Poly Lens. In a hot-desk or flexible workspace deployment, a user plugs the adapter into a laptop and the Sync 40+ is the active audio device without a pairing dialog, a driver install, or a cable across the table.

The acoustics are the same proven Sync 40 platform. A three-microphone steerable array focuses on the active talker at up to 2.5 m (8 ft) across a 100 Hz to 6.7 kHz bandwidth, with echo cancellation and noise reduction holding back HVAC noise and keyboard clatter. Full-duplex audio keeps both ends audible during overlapping speech. A bass reflex system with dual passive radiators extends the single 50 mm driver from 75 Hz to 20 kHz for natural voice and usable content playback. An IP64 rating suits a device that gets moved between rooms and handled by many people, and the internal battery delivers up to 30 hours of talk time with a sub-five-hour recharge, so a table with no power drop is not a constraint.

Microsoft Teams certification and a dedicated Teams button make this the right SKU for a standardized Teams estate. Two units pair wirelessly to each other to widen microphone coverage on a longer table. Where the room is large enough to need six microphones and twin speakers, specify the Poly Sync 60 for Teams Rooms. Where a cabled connection is acceptable and the adapter is not needed, the standard Poly Sync 40 Teams certified model (77P35AA) is the lower-cost option. Personal desks in the same estate are covered by the Poly Sync 20, and users who need private audio can standardize on the Poly Voyager Surround 85 UC headset.

Key Features

• BT700 USB-A Bluetooth Adapter Included — Provides a dedicated, pre-paired radio link to a PC or laptop so users are not dependent on the host's native Bluetooth stack.
• Microsoft Teams Certified — Validated by Microsoft for Teams audio performance and client integration across a standardized Teams estate.
• Dedicated Teams Button — Raises the Teams client and joins scheduled meetings from the device, removing the most common cause of in-room support calls.
• Three-Microphone Steerable Array — Focuses on the active talker at up to 2.5 m (8 ft) so one unit covers a full huddle table.
• Full-Duplex Audio — Keeps both ends of a call audible during overlapping speech rather than gating one side out.
• 50 mm Driver with Dual Passive Radiators — Produces 89 dB SPL across a 75 Hz to 20 kHz range for intelligible voice and content playback in a small room.
• USB Type-A to USB Type-C Adapter Included — Lets the same unit serve legacy room PCs and current USB-C laptops in a mixed fleet.
• Bluetooth 5.1 with 30 m Range — Supports mobile pairing for BYOD use alongside the adapter connection to the computer.
• Up to 30 Hours of Talk Time — A rechargeable lithium-ion battery recharges in under five hours, making table power optional.
• IP64 Rated — Resists dust and splashes in shared and flexible spaces where the unit is frequently moved.
• Wireless Pairing of Two Units — Two Sync 40+ speakerphones link for wider pickup and greater output on a longer table.
• Poly Lens Device Management — Updates and reports on both the speakerphone and the BT700 adapter from one management console.

Typical Applications

• Huddle room
• Conference room
• Commercial meeting space
• Multi-purpose room
• Training room

Technical Specifications

Frequently Asked Questions

What does the "+" in Poly Sync 40+ mean?
The plus designation means the speakerphone ships bundled with the BT700 USB-A Bluetooth adapter. The speakerphone itself uses the same acoustic platform, microphone array, battery, and Teams certification as the standard Poly Sync 40 Teams model (77P35AA). If a wired USB connection is acceptable in your rooms, the standard model is the lower-cost choice.

Why use the BT700 adapter instead of the computer's built-in Bluetooth?
Many managed endpoints have Bluetooth disabled by policy, and where it is enabled the host radio is shared with other peripherals with no visibility into link quality. The BT700 provides a dedicated, pre-paired Poly radio that appears as its own device to the host, and it is updated and reported through Poly Lens alongside the speakerphone. That makes the connection predictable across a fleet rather than dependent on each laptop's radio and driver stack.

What room size does the Sync 40+ cover?
Microphone pickup extends up to 2.5 m (8 ft), which fits a huddle room or small conference room of roughly four to six seats. For a longer table, pair two units wirelessly. For a medium conference room, specify the Poly Sync 60, which uses a six-microphone array with 3 m (10 ft) pickup and twin 50 mm speakers.

Does it work with platforms other than Microsoft Teams?
Yes. The unit is Microsoft Teams certified and carries a Teams button, but over both the USB connection and the BT700 adapter it presents as a standard audio device, so Zoom, Webex, Google Meet, and other softcodecs will use it. The Teams button behavior specifically requires the Microsoft Teams desktop client on the connected host.

Can two units be linked for a larger table?
Yes. Two Sync 40+ speakerphones pair wirelessly to each other, doubling microphone coverage and total output. This extends an existing huddle room to a longer table without new cabling, additional microphones, or an audio DSP.

How does it fit into an existing AV system?
The speakerphone is a self-contained USB and Bluetooth audio peripheral requiring no DSP, amplifier, or matrix. It suits BYOD huddle rooms, hot-desking areas, and flexible spaces connected to a room PC, a display OPS module, or a user laptop. In a room that already has a video bar or codec with its own microphones, use the Sync 40+ as the BYOD audio path rather than running both microphone sources at once.

How is the unit powered and charged?
The internal rechargeable lithium-ion battery provides up to 30 hours of talk time and recharges in under five hours over the USB connection. A charging stand is available separately for units that live permanently in a shared space and need a visible dock.

What warranty and support are included?
The Sync 40+ carries the Poly standard two-year limited warranty covering both the speakerphone and the bundled adapter. Poly+ service agreements for extended coverage, advance hardware replacement, and technical support are available separately; contact Creation Networks for the coverage tier appropriate to your deployment.