A Dummy Load is a device used to an electrical load during testing. In an System a dummy load is used to an antenna. By using a dummy load instead of an actual antenna, the transceiver can be tested and configured without radiating radio waves. The Dummy Load is in a way so that it has a similar impedance to the real device that be connected to the System.Not using a dummy load and leaving the port open, can result in some unwanted reflections which can damage the System. Also, using a real antenna in the testing phase can result in some unwanted transmission in the lab which interfere with other devices and technologies being tested. Warning: When the input power is high than dummy provide, this is damage the dummy load Material:Plastic + Metal colour:black Package Contents: 2 x Dummy Load 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.