Memorex has decent earbuds for the price. Definitely NOT for the audiophile, but for the casual listener who doesn't want to have to worry about losing an expensive set of earphones, or a cheap set to use someplace like the beach, these things aren't bad at all.
The only issue I had when testing Memorex earphone products was that some of the very inexpensive models had a strong scent from the rubbery parts that I found unappealing. I don't know about these specific models Arachne has reviewed though.
At any rate, Memorex seems to have a good handle on the cheap earbud market. For under $10 you really can't go wrong.