The R4 wireless video display is a state-of-the-art receiver capable of supplying verbatim closed captions, subtitles, graphics or audio playback on an individual hand-held receiver. Originally designed for live theatrical productions, this fully-automated system conveys pre-programmed dialogue, lyrics and sound effects with the efficiency of real-time captioning at a fraction of the cost and manpower. Each R4 receiver is a self-contained, non-intrusive wireless unit that can be used in any seat in the venue, allowing patrons with special needs to become active members of the general audience, no longer limited to certain performances or relegated to special seating constraints.

The R4, when coupled with the T4 transmitter and the CS-3 control unit, will display I-Caption user defined slides for closed captions or subtitling. The R4 can also playback prerecorded audio files in mp3 format for audio description for the blind or for multilingual audio commentary. When used with the I-Caption computer base station is the key component to a completely automated display system, utilizing proprietary wireless technology to deliver reliable cue changes every time.

The R4 handheld unit incorporates a sensitive RF transceiver utilizing a peerto- peer protocol in 2.4 GHz range for operation in global markets. This innovative mesh protocol offers added network stability through self-healing, self-discovery, and dense network operation. All of the video and audio content are stored on the units' removable micro-SD card. The unit reads jpg format to display graphic data while playing mono or stereo mp3 audio files.