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Avantree DG40S USB Bluetooth Adapter Review

The Avantree DG40S USB adapter allows you to connect Bluetooth headphones and headsets to your PC for wireless audio. With low latency aptX performance, it’s designed for gaming and media use.

Key Features

  • [Enable bluetooth compatibility] For Windows 11 / 10 / 8 / 7 / Vista / XP Laptop or desktop computer. Turns Non-Bluetooth PC or laptop into Bluetooth-capable. It is NOT compatible with Mac, TV or Car stereo systems.
  • [Multiple usage] Connect with Bluetooth headphones, speakers or receivers for wireless stereo music streaming. Also for Skype calls, Google Hangouts and mobile phone / tablet data transfer.
  • [Wide range of device support] Connect with Bluetooth keyboards & mice (NOT 2.4G devices), printers, projectors, PS4 / Xbox One S controller and other BLE (Bluetooth Low Energy) devices.
  • [Plug & play or Free driver] For native Win 10 / 11, plug into USB port and windows will auto-install the required drivers. For Win 8 7 Vista XP, download and install the driver from Avantree support site. ( Note: Our driver is FREE. Others may charge you. )
  • [Support] Avantree stands behind this product with 12-Month (extend to 24 months with product registration). Step-by-step Video guides & many FAQs online for quick support and convenience.


Audio and video remain in sync when gaming or watching video. Latency is less than 40ms for imperceptible delay.

Easy to pair with headphones and headsets. Provides clear microphone input for chat.


Compact USB-A connector plugs into any open port. No driver download required for quick setup.

External buttons allow control of volume, pairing, and profiles without unplugging.

Customer review

“Install instructions need to be cleaned up as there is some confusion on what to do on setup.exe. That’s the reason for one star deducted.

Finally got it connected when I understood the online prompts. My 10 year old upgraded Win11 Toshiba would not connect with original Bluetooth adapter. This DG45 worked and now I can listen to speakers in garage and on TV sound bar in next room..

Good response from Avantree when online warranty extension did not immediately get confirmed.”

“I purchased to use at my work and stream music to my bluetooth speaker, my office PC Does not have bluetooth and this remedied that situation given the old desktop bluetooth functionality, downloading the driver and setup was easy and the directions were clear and concise. GREAT PRODUCT ! Thanks”

Customer questions & answers

Q: does this work with odroid XU4?

A: na

Q: Will this device pair up with a Microsoft wireles mobile mouse 4000

A: This is some info I forgot to mention below : This also not only paired w / my Bose headphones, but my LG Sound bar, and my LG X charge mobile phone.

Q: Will this work with a bluetooth mic?

A: Yes, it will work with a bluetooth mic, headset, or headphones. The BlueSoleil software that is package with it allows you to select the profile and BT connections for the device.It was the only way I could connect my Creative Evo ZxR to be able to use A2DP Headphones profile and HandsFree MIC profile at the same time. It worked well.

Q: will it work with blue tooth ear plugs?

A: I don’t know. I use Bluetooth headphones. but I can’t see why they shouldn’t

Q: Will this work with Chromebook?

A: Sorry, it can only work with Windows system, while Chromebook uses Chrome OS.

With plug-and-play convenience and aptX Low Latency support, the Avantree DG40S is an excellent wireless audio adapter for PC gaming and media.