Features: Perfect for use in open fields where uninterrupted, high quality FPV feed is navigation and capturing breathtaking. The images transmission module needs to reserve a certain space for installation to ensures the cooling of the module and the air around the module; Otherwise, if the overheating protective of the module is started. Transmission will be reduced or even turned. It is suggested to ensures that the ranges is correct, and the positive electrode should use the negative electrode correctly, so as to avoid burning out the components. It is suggested to confirm that the antennas have been installed before the output terminals is extend the service life of the module. Please read the instructions before use to ensures the correct wiring and prolonging the service life of the module. Specifications: Component:Metal Size:Approx.3.77x3cm/1.48x1.18inch Note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item. Package includes: 1 Set Video Transmitter