Audio Pro LV 2e. System type: 2.0 system, Recommended usage: PC, Speaker placement: Tabletop/bookshelf. RMS rated power: 50 W, Frequency range: 45 - 22000 Hz, Crossover frequency: 4000 Hz. Connectivity technology: Wireless, Wireless technology: RF. Width: 145 mm, Depth: 180 mm, Height: 210 mm