£0.50 MIC? - Is it worth it?

EBAY LINK: http://www.ebay.com/itm/Portable-Mini-3-5mm-Tie-Lapel-Lavalier-Clip-Microphone-for-Lectures-Teaching-LS/161808273888?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D34493%26meid%3D3b944effc12d43f29d6353fee5450a63%26pid%3D100005%26rk%3D2%26rkt%3D6%26sd%3D221849272750

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My Latest Video!: "Camera ATTACKED By DOG! (Vlog #7)"
→ https://www.youtube.com/watch?v=uAHLUcTG4Dg
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