Please note that all of the comments below must be kept in perspective: This microphone costs $23, which is 10-20 times less than its current mainstream competition.
If you have never heard of the YPA microphone brand, do not feel bad - neither have I, until recently. As more and more microphones are manufactured in China, it was only a matter of time for a Chinese OEM microphone manufacturer to emerge with low-cost alternatives to name-brand models. YPA makes an omnidirectional, headset microphone that is compatible with the most common wireless standards, including Shure and Sennheiser. Luckily, with a phantom power adaptor, such microphones can also be used in a wired configuration, provided phantom power is supplied by a microphone pre-amplifier or field recorder.
The microphone has respectable specifications, but because nothing is known of the manufacturer's track record, one needs to take these with a grain of salt. The microphone costs $23 including shipping, which makes it the least expensive omnidirectional headset microphone available today. I tested the Shure version because I already have the Shure RPM626 phantom power adapter. I did not know what to expect because it appears to be a typical OEM model that is probably sold under several other brands.
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