```ruby
cask 'sound-control' do
  version '2.1.6,4297'
  sha256 '33feccad185a1cc53ac5e8e89202484254ca2f737ebf3ea86a988296f93c44a9'

  url "https://staticz.com/download/#{version.after_comma}/"
  name 'Sound Control'
  homepage 'https://staticz.com/soundcontrol/'

  pkg 'Sound Control Installer.pkg'

  uninstall launchctl: 'com.staticz.soundcontrol.*',
            quit:      'com.staticz.SoundControl',
            pkgutil:   'com.staticz.installer.soundcontrol.*'
end
```

Update Sound Control to 2.2.0
user
```ruby
cask 'sound-control' do
  version '2.2.0'
  sha256 '6b5c30e51713351679d052f9d315f48b77e04e7e95a01fec1fba53e7424c0c31'

  # staticz.net was verified as official when first introduced to the cask
  url "http://staticz.net/downloads/SoundControlInstaller_#{version}.dmg"
  name 'Sound Control'
  homepage 'https://staticz.com/soundcontrol/'

  pkg 'Sound Control Installer.pkg'

  uninstall launchctl: 'com.staticz.soundcontrol.*',
            quit:      'com.staticz.SoundControl',
            pkgutil:   'com.staticz.installer.soundcontrol.*'
end
```
assistant