[PRECISE ROOM SIZE CONTROL] The 13398-DO Dual Synchronous Velocity Slide Controller is designed to effectively control the size of the room slide in your RV, offering precise adjustments for optimal customization. [INTUITIVE LED INDICATORS] The rv slide controller equipped with 2 LEDs - one green and one red - this controller provides clear visual feedback on the current status and any faults, ensuring easy monitoring and troubleshooting. [DUAL SYNCHRONOUS SPEED CONTROL] Offering dual synchronous speed sliding out control, this advanced feature enhances the smooth operation and synchronization of your RV's slide-out mechanism, ensuring a seamless and efficient experience. [COMPATIBILITY & REPLACEMENT] The 13398-D0 slide controller is a replacement for the V-Sync II controller, specifically designed to be compatible for Lippert In-Wall Slide-Out systems on RVs, providing a reliable and high-performance solution for your slide-out control needs. Controller V-SYNC SCHWINTEK In-Wall Slide-Out 13398-DO, 14645 Manufacturer's part number: 13398-DO Product description: controller For V-SYNC SCHWINTEK controller For V-SYNC SCHWINTEK in-wall slide-out 13398-DO, 14645. Controller only, basic functions of the test unit. Replacement: For controller V-Sync II For Lipper in-wall slide-outs Controller version 13398-DO has replaced 13398-C2 Precision fit kit Color:Black & White Material:ABS Package Contents: 1 x Dual Motor Synchronised Speed Slide Controller