Sweex Notebook Speaker Set Blue Lagoon. RMS rated power: 2 W, Frequency range: 120 - 18000 Hz. Connectivity technology: Wired, Speaker interface type: USB. Width: 64 mm, Depth: 101 mm, Height: 75 mm. Speaker power: 2 W, Audio output channels: 2.0, Satellite speaker driver size: 55.9 mm (2.2 ")