Samlap makes another line called "Shule." They are all rip-offs of Shure microphones.
I've never used one ... I will say that with regard to electronic equipment "you get what you pay for." However, I'm also a big proponent of "it's not the gear, it's the user."
For $20 it wouldn't hurt to just get one and if it's crap get something better. At least then you'll have two microphones ... you never know when the cheap one will work for a cool special effect.
Here's a link to their website:
http://www.cn-samlap.com/file-e/prod...21809;咪
Not sure if it will work though--and watch out the site is veeeerrrrry slooooow.
Doug