AV-JEFE AVL622 Professional Headset Microphone with Movable Boom_TA4F Connector (Compatible with Shure Wireless Systems) Great Quality Professional Headset Mic !!! Compatible with Shure transmitters: L1, L11, LX1, SC1, U1, UC1, UT1, T1, ULX1, UR1, PGX Super lightweight; Ideal for presentation, speech, broadcasting Detachable boom and can be used left/right side of the headset Extendable boom length; Boom can be moved up and down, left to right and rotate by 360 degree