The Sennheiser MMD845-1is a microphone module with the outstanding acoustics of the wireless e945 vocal microphone. Its excellent feedback rejection is achieved thanks to its consistent pick-up pattern (super-cardioid) and gives vocals a particularly strong presence even under loud on-stage conditions. Compatible with all the following handheld transmitters.... SKM 100/300/500 G3 and G4, SKM 2000/6000/9000, SKM D1/AVX, SL Handheld DW.