Superwinch (06718 12V DC Certus Wireless Remote System for S Series Winches Superior FM signal - operates up to 50 feet away Plug and play for S series, Large X series and EP series winches Transmitter floats in water Transmitter and receiver meet IP67 standards Wireless program uses "Close-Link" system that requires both the receiver and sender to recognize each other; if one drops out, the system is shut down for users safety