I have checked several posts on the subject and could not find a solution. The SoundCore 2 works fine on Android and Mac OSX. However, on Windows 10, it had only enabled "Headset SoundCore 2 Hands-Free" device. The device called "Headphones SoundCore 2 Stereo" is also present, but it shows as "Disconnected".
To troubleshoot the issue, I did a succesful SoundCore 2 device firmware upgrade. The only change I noticed after the upgrade is that the device called SoundCore speakers device is gone from the list and it is now replaced with "Headphones SoundCore 2 Stereo", which is still disabled as you can see from the screenshot. The "right-click + enable" option on the device does not change the status - it still remains disabled. Turning OFF/ON the Windows 10 bluetooth does not fix the issue. Restarting the PC also does not fix the problem. Any idea how to fix this? I am kinda at the end of the rope here. It is a shame, since the speaker works fine on Android and OSX.