CM3 5.8GHz Wireless AV 3 RCA Audio Video Transmitter, Transmitter IR until 1080p HD, CM3-NW-038 (Electronics)
Use: Distribution from the tone of the PC or the picture and sound from the digital receiver (analog output, RCA, DVD quality) about five meters distance, into two rooms by a respective simple (non-structural) brick wall on small tube TV devices. Use