The BFE-2300-80 from ESJ Technology is a Band Pass Filter with Frequency 2260 to 2340 MHz, Center Frequency 2300 MHz, Insertion Loss 0.8 dB, Rejection 70 dB, Upper Rejection 70 dB@2500 to 3500MHz. Tags: Module with Connectors. More details for BFE-2300-80 can be seen below.