The LBX8000 is a type of shielded chamber used for testing wireless devices such as WLAN (Wireless Local Area Network) and other wireless devices. It is designed to block or reduce external electromagnetic interference (EMI) and radio frequency interference (RFI) that can interfere with the performance of the device under test. The chamber is made of metal, typically aluminum or steel, which acts as a barrier to block unwanted signals. It also includes various types of gaskets and seals to further reduce the amount of RF energy that can penetrate it.