Because there are many infrared in the family, such as set-top boxes, , remote control fans, air conditioners, and projectors, this device can be used for centralized control and control. Applies to all remote Suitable for TV set, STB, DVD, DVR, , video recorder, satellite receiver, and so on The Way To achieve power: Appliance USB or 5V Supply power: 5V Note: Do not support ! How to install: 1. Use the double-sided adhesive to stick the receiver in an ideal location. 2. Stick infrared device emitting head that you to control. size: The transmitting line is 2 meters long and the receiving line is 1.4 meters long Material: Plastic+metal colour: black Package Contents: 1 x IR Infrared Remote Control Receiver Extender 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.