1. 2.0 speaker, with USB port. 2. High fidelity 3. two channel ... USB 2.0 computer speaker, 2.0 computer speaker, 2.0 speaker, USB speaker, computer speaker, mini speaker, portable speaker, 2.0 channel speaker, 2.0 sound box, 2.0 sound speaker, sound box, home ... theatre2. compatible with USB drive, mp3, mp4, mobile and laptop, etc3.Good sound ...