Originally they were 9.66 now reduced to $5.99. I bought one for the original price and liked them, pretty loud and lightweight, great for my Skype/facetime calls on iphone/mobile. You can buy online but I think the minimum order should be $30 and then either can get it delivered or choose click and collect.
Enjoy!
based on my experience I will not recommend them for playing songs, the best use I found was for making voice/internet calls and listening to shows/presentations/lectures etc.