Scandyna MegaPod . System type: 2.0 system, Recommended usage: speaker set unit, Speaker placement: Tabletop/bookshelf. Frequency range: 28 - 22000 Hz, Impedance: 4 Ом, Sensitivity: 91 dB. Recommended amplifier power (max): 10 W, Recommended amplifier power (min): 200 W. Connectivity technology: Wired. Width: 348 mm, Depth: 535 mm, Height: 884 mm