MRC:
						A measurement of the longest dimension of a shank,in distinction from width.ACBW
					 
					
						Shank Length:
					
					
						0.750 inches					
				 
							
					
						MRC:
						An indication of whether or not a device used to open or close an electrical circuit is included with the item.AEZD
					 
					
						Switch:
					
					
						Not included					
				 
							
					
						MRC:
						The specification,standard,or manufacturer's number or symbol used to identify the connector.AGBG
					 
					
						Connector Identification:
					
					
						U-77/u					
				 
							
					
						MRC:
						Indicates the type of earphone element as determined by its construction and method of operation.AHEQ
					 
					
						Earphone Element Type:
					
					
						Dynamic					
				 
							
					
						MRC:
						The number of electrical conductors included on the item.AMQN
					 
					
						Conductor Quantity:
					
					
						3					
				 
							
					
						MRC:
						The source of power which provides the energy required for the operation of the item.AWZJ
					 
					
						Power Source:
					
					
						Sound powered					
				 
							
					
						MRC:
						The total opposition (resistive and reactive) which the earphone offers to the flow of alternating current.BKSQ
					 
					
						Earphone Impedance Rating:
					
					
						Between 110.0 ohms and 210.0 ohms 					
				 
							
					
						MRC:
						Indicates the type of microphone element or cartridge as determined by its construction and method of operation.BKSW
					 
					
						Microphone Element Type:
					
					
						Dynamic					
				 
							
					
						MRC:
						An indication of whether or not a cord is provided.BKTK
					 
					
						Cord:
					
					
						Provided					
				 
							
					
						MRC:
						An indication of whether or not a telephone type plug is provided.BKTL
					 
					
						Telephone Type Plug:
					
					
						Not provided					
				 
							
					
						MRC:
						The length of a straight line which passes through the center of a circular shank,and terminates at the circumference.BKTM
					 
					
						Shank Diameter:
					
					
						0.375 inches					
				 
							
					
						MRC:
						Indicates the type of connector termination provided.BKTN
					 
					
						Connector Termination Type:
					
					
						Plug					
				 
							
					
						MRC:
						Designates the size of the relative or proportionate dimensions of a coupling nut or shell.BKTP
					 
					
						Connector Coupling Nut/shell Size:
					
					
						7/8-20 thread coupling nut					
				 
							
					
						MRC:
						Indicates the type of individual conductor termination(s) provided.BKTQ
					 
					
						Individual Connector Termination Type:
					
					
						Any acceptable