Review on Purple Panda PC USB Lavalier Lapel Microphone: Ultimate Plug & Play Lav Mic with Adapter, Ideal for MacBook, Laptop, iMac, Desktop – Clip On Mic with Long 9.8ft Extension Cord by Dustin Ferguson

Seems to be a decent quality mic but it is definitely a cardioid directional mic, not an omnidirectional mic as the listing says. You can tell by pointing the mic 90 degrees when speaking, and you can tell just by looking: directional mics have a tube with slots on the side, omnidirectional mics have a hole. I know it's confusing, but the directional part has to do with the sound waves coming in sideways and canceling out. The orientation makes it less user-friendly as it can only be attached to clothing in one direction.