SM-EYE is an IR receiver provided of a 1.8m cable ending with a 3.5mm jack.
It operates, in conjunction with the SM-LED emitter, with a CAT5 Transmitter/Receiver pair and is usually connected to the CAT5 transmitter which is close to the source.
The user, who stays close to the destination, hits the SM-EYE receiver with the IR beam emitted by the SM-LED.
The signal, through the CAT5 cable, will be carried to the SM-LED emitter which will control the source device.
Download here the available Hi-Res images of SM-EYE.