The omnidirectional antenna transmits signals in all directions. Both the front and back can receive signals. The directional antenna is like a bowl-shaped reflective surface behind the antenna. The signal can only be transmitted to the front, and the signal behind is blocked and reflected by the reflective surface. To the front, the previous signal strength has been strengthened. The figure below shows the signal radiation pattern of a directional antenna. The main radiation range of a directional antenna is like an inverted, incomplete cone. size:10m Material:Metal + plastic colour:White Package Contents: 1 x External Antennna Outdoor 2 x Clip code 2 x U-shaped code 4 x Nut 4 x Washer Only the above package content, other products are not included. Note: Light shooting 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.