The declaration of conformity for allroundo® can be found here. 05 August 2019 07:10 Updated To view the EU directives that allroundo® complies with, you can follow this link. Related articles The declaration of conformity for Backbone can be found here. I have lost one of my allroundo® connectors. My allroundo® does not charge immediately. The Wireless Concert One Declaration of Conformity can be found here. You can read the instructions for our allroundo® here.