Audio-Technica ATM73 Cardioid Condenser Headworn Microphone with 55” Cable - Unterminated Cable 6-string Power Requrements: 12 - 16

Power Requrements: 12 - 16 VDC 150 mA (Rolls part number PS27)

That's pretty low power when you consider Marshall's other models at the time

tip negative barrel positive

Support Bar Tubing (inner): 0

Budget cajon with bag

Audio-Technica ATM73 Cardioid Condenser Headworn Microphone with 55” Cable - Unterminated Cable 6-string Power Requrements: 12 - 16Ideal for drummers, keyboard players or anyone requiring hands freeoperation, the ATM73ac features a comfortable, unobtrusive headbanddesign with side of mouth pickup. Its belt mounted power module operateson battery or phantom power. Same as ATM73a, less power module; unterminated 55" (1. 4 m) cable. Includes AT8125 and AT8128 windscreens.