... connector 4, OEM EM-403 electret portable retractable unidirectional CB mic with 4 pin 5 pin 6pin ... : 1, EM-403 dynamic CB mic2, electret unidirectional CB mic 3, CB mic with 4 pin 5 ... OEM 5,cable extended length 2.3mparameterB Microphone microphones for CB mobile radios Sensitivity-66+3dB at 1K ... cooperating with you . EM-403 electret portable retractable unidirectional CB mic with 4 pin 5 pin 6pin RJ ...