- Spotify calls out Apple for removing volume control for connected devices Mashable
- The iPhone’s volume buttons will no longer work with Spotify Connect The Verge
- Spotify points finger at Apple over an unwelcome change to volume control technology TechCrunch
- Spotify says Apple ‘discontinued’ the tech for some of its volume controls on iOS Engadget
- Spotify Says Apple No Longer Allows for Physical Volume Controls on iPhone Connected Devices Gizmodo