Features: OOTDTY   brand new and high quality One receiver can work with 400 codes. It don’t interference other remotes and receivers. With 8 dip switches user can make different combination for different remote brands. This receiver can work at AC/DC 9V-36V. Press the button on the remote, the LED flashes 4 times. It means that remote control was programmed successfully. Specifications: Material:ABS Size:Approx.52x45 mm/2.04x1.77 inches Package Includes: 1x Remote Receiver Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.