I had the same requirement as you do and eventually after a lot of research I found that getting a microphone which is a USB one plug into a computer it's much better than an earpiece 1

So from a selle here I bought the Sansom Go mic

They are also many other brands to choose from but my budget was a bit less than yours and I never regretted getting this microphone
You should do a search on the internet all YouTube

bro you got to read this article first then thank me

http://www.wirerealm.com/guides/top-10-best-usb-microphones

good luck