I am a new user of a pair of Bose QC 35 II. I have the latest firmware and have been able to listen to music with no issues via my Samsung 7 edge using the Alexa app.
My problem is when I try to listen to music while sat at my PC.
Spotify and Amazon music both stutter, I have 500gb Virgin broadband, Windows 10 all up to date, I used an 2.5 bluetooth usb for connection, so thought this was this issue with connectivity so purchased (Avantree DG40S USB Bluetooth 4.0 Adapter Dongle for PC Laptop Computer Desktop Stereo Music, Skype Call, Keyboard, Mouse, Support All Windows 10 8.1 8 7 XP vista).
I am still having the same issues with music stuttering.