The E6043 frequency response and cardioid pick-up pattern are optimized for drum sets and other percussion instrument miking, while also producing exceptional results on all forms of brass and woodwind. An integral stand mount screws directly onto mic stands and included clip attaches mic to rim of drum. Three microphones are in the package! 1.8mV/Pa = -55dB (0dB=1V/Pa) 1.8mV/Pa = -75dB (0dB=1V/mbar) (USA) Nominal impedance at 1kHz - 350 ohms Min. terminating impedance - 1000 ohms Sensitivity to magnetic field at 50Hz - 1 V/ T Weight - 2.1 oz. Dimensions - 1.3 x 2.3