Part Number: 09168P231 (Mic (hcm-el)electret microphone) Part Number: 09168P-26 (Voice powered e) Part Number: 09168P-27 (No description) Part Number: 09168P-30 (Packaged as 09168p-31) Part Number: 09168P31 (Microphone) Part Number: 09168P-32 (Packaged as 09168p-33) Part Number: 09168P-33 (M-7a) Part Number: 09168P-34 (Packaged as 09168p-35) Part Number: 09168P-35 (M-77) Part Number: 09168P-41 (Microphone m-101 type 25 ohm) Part Number: 09168P-42 (Mic,m101 style,150 ohm) Part Number: 09168P-43 (Microphone,m-77 unamp spcl) Part Number: 09168P-43-DC (Packaged as 09168p-57) Part Number: 09168P-44 (Microphone,electret,amp m-170)