Can transmit all the infrared remote control signal equipment, does not affect the machine remote control receiving.For example: amplifier, cable box, stereo receiver, satellite TV receiver, CD player, DVD player, Blu-ray player or any other components which is controlled by IR signal.Realizing remote infrared control. To achieve the purpose of equipment resource sharing. With 1 receiver which picks up the signal from the remote controller, the receiver is with a convenient IR confirmation LED. With 4 emitters which is used to send the signals to the A/V components. 32-60kHz operating range. Type:IR Extender How to use: Stick the Receiver in a convenient location that you want with the included double sided tape; Stick the IR emitters on devices that you want to control; Please make sure to place IR emitter(the small one) ON THE IR WINDOW of your device Attention: Placing two IR emitters on the same component not improve performance, because one transmitter control a home appliance,and not interfere each other Colour:Black Material:plastic+metal Package Contents: 1 * IR Infrared Remote Control Receiver (line length is 2 meters) 1 * 4 Emitters Extension cord(line length is 1 meter) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.