Acoustic Research ARRE433B Xsight RF Wireless Extender (Discontinued by Manufacturer) Control up to 6 audio or video devices inside your cabinet, through walls, floors and ceilings No line of sight needed RF range up to 100 feet and this might vary according to your environment RF extender receives RF signals and translates them to IR signals for the devices that are hidden Inside the box is the RF extender, 6 IR LED extender cables and power adapter