Media-Tech Tumba. System type: 2.0 system, Recommended usage: PC, Speaker placement: Tabletop/bookshelf. RMS rated power: 3 W, Frequency range: 120 - 18000 Hz. Connectivity technology: Wired, Speaker interface type: USB. Width: 75 mm, Depth: 155 mm, Height: 80 mm. Power source type: USB