Models:T6 Feature: 1.Surround Sound & Zero Noise: Adopting DSP technology and dual horn and double pilot holes, this Desktop Speaker creates 4D sound effect, providing exquisitely carved treble, melodious middle tone and rich bass. By using anti-magnetic technology and suppressing static and other noise, our USB speakers offer you pure stereo sound when you are enjoying movies, videos, music and games. No current noise resulting from electronic device interference. 2.Multi-function Knob & Easy Operation: At its top centre is a spin button, which is used to adjust the volume and switch it off/on. .
eBay