Thank you for your help and kindness. I will search some information of Ultimate Ears UE4000 and Incase Sonic. Thanks.

Thank you very much. But they are much cheaper than genuine ones.

I am gloomy recently so want to buy a gift for myself. Fortunately, I happened to meet a cheap beats by dre Mix headphone in http://www.drebeatstilbud.com/beats-by-drdre-mix-hoslashretelefoner-neon-pink-limited-edition-p-43.html. But later the cute tiffany jewelry item came from...

I think purchasing computer speakers online would be a wise choice, if you want cheap ones.

Thank you very much. I will check it soon.

Ok, I got it. I will look for some information of Sennheiser.

Can the Beats by Dre headphones be used wireless on a computer? Do I have to purchase a particular type of the Beats by Dre or any extra add-ons?   Besides, I found a online store which sells beats by dre in low price. Sould I blieve it? If you have bought cheap beats by dre online, could...

My real name is Kate. I like collecting cool headphones. Hope we can share good earphones together.