Our products are assured for reliability and durability which has high quality and standard Our products are designed with the up to date designs and creativity We always work towards to fulfill the requirements of our end users Features . This 4 Function BEMF Decoder is for the N Scale Intermountain F3A B F7A B F9B Locomotives. Auto adjusting BEMF for outstanding slow speed performance and hassle free set up. Quiet Drive for super quiet engine performance Specifications . Scale N