Clip-on electret condenser microphone $25
Omnidirectional; Radio Shack Model 33-3013; broadcast quality; on/off switch; low impedance; lightweight and unobtrusive; includes mike holder with clothing clip; more details from the packaging: “ideal for TV, stage, lecture halls, meetings and home recording; wide 70-16,000Hz frequency response; on/off switch; 4 ½ foot cable with 1/8” plug"; also could possibly be used for webcasts, streaming and interviews