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Poly Sync 40 USB-A USB-C Speakerphone

  • Hear and be heard
  • Simple for IT
  • Expand your meeting spaceSee all Specs

Earn 1X HP Rewards Points
Product # 772C4AA
Business moves fast. Joining virtual meetings should be fast, too. Poly Sync 40 USB/Bluetooth® smart speakerphone lets users get straight to work. Hassle-free with quality audio – optimized for flexible and huddle workspaces.

Hear and be heard

Don’t miss a word with a multi-microphone array, which focuses on what’s being said and helps keep echo and noise out of meetings. Full-duplex audio lets conversations flow naturally, even when users talk over each other.

Simple for IT

No complex setup, no user training, and no additional headaches — the Poly Sync 40 is simple to deploy to your workforce. For IT, inventory tracking and updates are made easy with Poly Lens, remote device management.

Expand your meeting space

Poly Sync 40 brings professional-sounding audio to your meeting spaces. Wirelessly pair two units together for your larger meeting room needs. Your device will be ready to go with up to 30 hours of talk time.

Three-microphone array

Experience conference calls with outside noise and distractions tuned out. A three-microphone array focuses on your voice — not the surrounding noise.

Audio clarity

Enjoy more clarity on your calls thanks to the bass reflex system with dual passive radiators for natural voice and deep bass.

Full-duplex audio

Collaboration gets tough when one voice dominates the conversation. Full-duplex audio makes simultaneous conversations a breeze.

Device connectivity

Enjoy easy connectivity, to your devices — connect smartphones wirelessly via Bluetooth® or to the computer using a combined USB-A and USB Type-C®️.

Up to 30 hours of battery life

Be ready to take a call — an internal battery provides up to 30 hours of talk time Keep the device charged with the convenient charge stand, sold separately.[1]

Communications platforms

An IT manager's dream, this speakerphone was created for communication and is optimized and certified to work with top virtual meeting providers.[2]

Technical details

Battery life

Up to 30 hours (talk time)


Rechargeable Li-ion

Button User Controls

Power on/off; Wireless daisy chain

Touch User Controls

Call/answer end; Mute; Volume +/-; Programmable function button; Bluetooth® pairing

Microphone Type

Three-microphone steerable array

Speaker size

50 mm

Speaker bandwidth

75 Hz to 20 kHz

Connection Type

USB Type-A (PC); USB Type-C® (PC); Bluetooth® (smartphone)

Cable length

41 in

Charge Time

<5 hours




Compatible with PCs via combined USB Type-A and USB Type-C®️ cable. Smartphones via Bluetooth®️.

Compatible operating systems

Windows 10; macOS

Minimum system requirements

USB Type-C® port; USB Type-A port; Bluetooth®

Dimensions (W X D X H)

1.5 x 4 x 10.7 in


1.343 lb


Poly standard two-year limited warranty

What's in the box

Quick start guide; Wireless Speakerphone; USB Type-A cable; USB Type-C®️ cable

Manufacturer Product Number



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Poly Sync 40 USB-A USB-C Speakerphone is rated 4.5 out of 5 by 45.
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Rated 1 out of 5 by JLNAGENCY from Audio issues Unit packaging should include a full blown Owners Manual ,,, not simply the Quick Start Guide. I attempted to integrate it into a monitor and new Macbook Air intending to hold Zoom Meetings. I was never able to get the audio properly ,,,, either echoing, or no sound from the mic, or no sound from the speaker. It would pair to the Macbook Air instantly sometimes, and other times I couldn't get it to pair.I I had 3 experts, over 3 days time, attempt to help me and all failed. We actually got it to work (audio both ways) a couple times ,,, but if we shut it down and tried a test zoom meeting again, it never worked properly. Very frustrating..
Date published: 2023-04-01
Rated 5 out of 5 by Anonymous from Works Great with Mac Book Pros. Product is simple to use and meets our need for a small conference room. Our studio is fully on Apple devices and this product works great with our Mac Book Pros. Note that the bluetooth will work on a Mac with out the extra usb dongle that comes with the Poly Sync 40+, however, sound quality is not as good as connecting directly with the cable. If wireless connectivity is critical, I suggest the 40+. Our’s is set up in a small meeting room, and the wired connection makes it more simple for users to just plug and play, especially since it has an USB-C end on the cable.
Date published: 2023-03-27
Rated 3 out of 5 by Trev H CTS I from Poly 20 or 40? Stand-alone, go w/ poly 20. If you were looking for a great standalone, conferencing system, that is quick and easy to use, plug-and-play, then the poly 20 sounds much better than the poly 40. If you need two or more quick, plug and play conferencing devices, then the poly 40 will be your best friend. Both sound amazing however, I really found the poly 20 to sound much better than the poly 40. If I had another poly 40 nearby I think it would sound much better than the poly 20 as it could be set up as stereo or independent. I like how you can link the poly 40 together with other poly 40 devices and think that it is a great solution for many applications, when you need a quick conferencing solution. The poly 40 does work very well with teams but then again, so does the poly 20.
Date published: 2022-10-14
Rated 5 out of 5 by Dave J in ATX from Great Audio in a Low Profile w/ Long Battery Life The first thing that jumps out about the Sync 40 is the great audio. For a Bluetooth speaker, it is much better than other devices I've used. I also like the low profile and sleek look--it isn't knocked over like cylinder or tall bar speakers can be. The battery life is impressive and can be used to charge a phone, which is really nice when using outdoors away from power sources. I also think the integrated charging cable with built-in storage mechanism is very smart and innovative. I've used a UE Boom speaker for a while and I can't count how many times I took it outside and found it wasn't charged and I didn't have the cable handy, then had to go looking for where I left it. You still have to have a USB outlet, but at least the cable is not going to get lost.
Date published: 2022-09-02
Rated 5 out of 5 by RobertoB from Sync 40 Great Product excellent for calls and great sound quality
Date published: 2022-07-25
Rated 4 out of 5 by Jack D from The Poly Sync 40 I just started using the Poly Sync 40. So far so good. I have been asking participants on video conferences how I sound, and received favorable responses. I have started testing various distances. Love the portability. May upgrade to five stars after further testing.
Date published: 2022-07-18
Rated 1 out of 5 by BenM from Total waste of money I bought this specifically to get a great microphone, which the previous reviews and the Poly advertising suggested would be available. Unfortunately, it is less good than using the microphone built into my laptop. Multiple meetings, on multiple different platforms, showed that the voice quality was better without the Poly turned on. When I use the poly speaker with the laptop mic, the speaker was deep and base-y and unpleasant. Overall, an entirely useless purchase which I am returning.
Date published: 2021-12-20
Rated 2 out of 5 by DaveTech from Bluetooth Challenges [This review was collected as part of a promotion.] Sound quality is good but the Bluetooth management is challenging. My phone will connect and disconnect at random. I had 2 other speakerphones in the past and they worked flawlessly. My phone will literally be mid call and the Bluetooth kicks out.
Date published: 2021-10-17
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Return and exchange information
HP.com will accept returns or exchanges for this product up to 30 days after delivery. A restocking fee may apply. For details, please visit: https://www.hp.com/us-en/shop/cv/returnsandexchanges.