The DPA 3511 is a stereo microphone kit consisting of a matched pair of 4011-TL microphones. The microphones are matched within +/- 1dB for precision stereo recording. In addition to the microphones, the kit ships with 2 windscreens, 2 shock mounts, a precision-crafted stereo boom for secure mounting of microphone pairs and a spacer to allow XY or ORTF stereo set-ups on the boom.