JBL LOFT40, LOFT SERIES. Recommended usage: speaker set unit, Speaker placement: Tabletop/bookshelf, Tweeter size: 25.4 mm (1 "). RMS rated power: 125 W, Frequency range: 55 - 20000 Hz, Impedance: 8 Ом. Connectivity technology: Wired. Colour of product: Black. Width: 151 mm, Depth: 191 mm, Height: 250 mm