In general
(http://shop.bachmanntrains.com/images/HO_Scale/44902.jpg)
E-Z Command Control Center Item No. 44902 and its components are the result of a partnership between Bachmann Industries Inc., USA and Lenz Elektronik GmbH, Germany
(http://shop.bachmanntrains.com/images/HO_Scale/36507.jpg)
E-Z Command Dynamis Item No. 36505 (image shows just handset) and its components are the result of a partnership between Bachmann Europe Plc, UK and ESU electronic solutions ulm GmbH & Co., Germany
Each Bachmann DCC system and its Components are found in the Bachmann 2013 Catalog (http://www.bachmanntrains.net/Catalogs/2013/2013_Bachmann.pdf)
Bachmann Industries Inc. (aka Bachmann Trains) and Bachmann Europe Plc (aka Bachmann UK) are sister companies of parent Kader Holdings Company Limited, Hong Kong