This is the E-Z Command® 5 Amp DCC Automatic Reverse Loop Module by Bachmann®. Suitable for Ages 8 & Older. FEATURES: Designed for use with the Bachmann® E-Z Command® System (BACU4402). Automatically switches polarity to allow reverse loop travel. Adjustable amp sensitivity for use with OO/HO/On30, N gauge, and Large scale. LED power indicator. Gapped rails required for operation (2 x BACU4597 or an equivalent may be used). Detailed instructions. INCLUDES: (1) Reverse Loop Module Connector Wire kr1/30/06 ir/kh