ColorYourSound 'Back to Black' for Sonos Sub High quality cover for Sonos Sub speakers. All ColorYourSound covers are made to be compatible with the Sonos speaker functionalities with no influence on sound quality. The Sonos on/off and volume buttons are easily accessible with the control lamp fully visible through the cover. Designed in Switzerland, all ColorYourSound covers only utilize the finest fabric with stretch thread that is sourced directly from central Europe. The elasticity of ColorYourSound covers ensures that all speakers are fully enveloped without creasing and pulling through the use of a simple cord. All ColorYourSound covers are washable at 30 and work with wall mounts.