IR Receiver Extender Cable has built-in RC filter circuit, which can effectively reduced interferences picked up by the extended cable, the shell is made of light filter material, which helps to resist visible light disturbance, remote control function will become more flexible and more convenient. * Different carrier frequency versions: 36kHz, 38kHz or 56kHz * Available in 2.5mm, 3.5mm - 3-contacts plug, or USB plug. * Standard cable length of 1.0, 1.5 or 2.0 meter (or Custom-made) * Suitable for Set top box, car DVD AV system & other IR control system Carton