I bought a USB support Computer Speaker of a Philips company. Its model number is SPA 50R/94 and it supports USB 2.0 I have been using it for 1 year. it’s still running well. this speaker is good in the case of built quality . the sound of this speaker is good. it’s not good for speaker base. the base is very slow in this speaker.It is very easy to use this speaker. this speaker takes power from USB 2.0 .It has the volume control button in its wire line itself And in the support audio jack 2.0. Talking about its price I bought it online for Rs 499. This product is value for money. I bought it flipkart .