1 in 2 out design enables connecting 1 optical Auditory source to two output devices for versatile Auditory settings. The digital optical fiber Auditory male 1 to 2 female splitter adapter connects your music player or other digital Auditory source to both your receiver and recorders. For professional or home installations, it helps reduce wear from constant plugging and unplugging of cables. The adapter may be used with 1 input cable and 2 output cables. Typical applications Home theater or stereo system: connect a single optical Auditory source such as a music player or Blu ray player to both a receiver and a digital recorder for simultaneous listening and recording. Studio or broadcast use: split one digital Auditory source to two monitoring devices or interfaces for parallel monitoring. Education or presentation: share one Optical Auditory source with two sound systems or recording devices in a classroom or meeting space.