This Is  a lot of 3 Items

3 Bruel & Kjaer Microphones Type 4133/4135/4144<BR>
Includes Apparatus Holder<BR>
Type 4133 1/2" Condenser Microphone Cartridge Frequency Ranges from 2.6 Hz to 140 kHz<BR>
Type 4135 1/4" Condenser microphone 4 Hz to 100 kHz<BR><BR>
Asset# 51559/51560/BA-kr