Countryman B6W5FF05BDZX, Zaxcom: TRX-900AA, TRX-900LA, TRX-LAS, TRX-900LT, TRX-900LTS (single mic), TRX-900LTH, TRX-900LTHS (single mic) (Code ZX), (W5) Mid gain for theatre head miking, (B) Black, (D) Detachable, B6 Omnidirectional Lavalier Microphone