Remote Prism - Hidden Invisible High Performance Infrared (IR) Receiver 38khz 1 meter cable - Now Available for Consumer Applications! Remote Prism&trade; patented design mounts behind the TV and is almost completely invisible Highest performance frequency tuned sensor for 38khz products Permanent adhesive, will not fall off or get knocked off when cleaning the TV 1 meter detachable cable. Standard stereo audio cable of any length may be used Hundreds of thousands of Remote Prisms&trade; already sold