This is the E-Z Command® Walk-Around Companion by Bachmann®. Suitable for Ages 8 & Older. FEATURES: Simultaneous throttle control of several locomotives for primary and secondary user operation. Duplicates locomotive addresses set on E-Z Command® Control Center. Controls first 4 primary light and sound functions. Has 2 I/O ports so that a second Companion can be added Category 5 coiled connector wire easily connects to the E-Z Command® Control Center. Can be used in conjunction with Walk-Around Connector Panels (BACU4408) to establish control points virtually anywhere on the perimeter of your layout. Detailed instructions. INCLUDES: (1) E-Z Command® Walk-Around Companion Connector Wire REQUIRES: E-Z Command® DCC Controller (BACU4402) kr1/31/06