Hi! Since this isn’t natively supported in Windows, I recommend using a third-party application like Voicemeeter Banana, which is free to use, here's how:
- Install Voicemeeter Banana: https://vb-audio.com/Voicemeeter/banana.htm
- Set Voicemeeter as your default playback device in Windows
- In Voicemeeter, assign A1/A2 outputs to your Bluetooth speakers
- Play audio — Voicemeeter will send sound to both
Before using Voicemeeter, make sure both speakers are connected to your PC. If not, here’s how:
- On Windows 11, go to Settings > Bluetooth & devices.
- Turn Bluetooth ON.
- Click Add device > Bluetooth.
- Select your speaker from the list and click Connect.
- Repeat the process for the second speaker.
Note: This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.