Charter Ocap&ndash;4 (C4000 & S4000) 4-device Remote Control for HDTV DVR Cable BOX Universal Remote Control with preprogrammed control to operate the cable converter supplied by your cable service provider Dedicated keys to control popular functions on your DVR/PVR Programmable Master Power key for master on/off control of your home entertainment equipment with a single keystroke Color-coded keys to quickly locate popular functions, code library for popular video and audio devices Volume Lock to lock volume controls to one mode or individual mode