The LDX-2400/5725-Q4 from Leader-MW is a RF Duplexer with Frequency 2.4 to 5.85 GHz, Band 1 2.4 to 2.4835 GHz, Band 2 5.725 to 5.85 GHz, Insertion Loss 0.5 dB, Attenuation 90 dB. Tags: Module with Connectors. More details for LDX-2400/5725-Q4 can be seen below.