NGS Blue Hatch 2.0. System type: 2.0 system, Recommended usage: universal, Speaker placement: Tabletop/bookshelf. RMS rated power: 4 W, Frequency range: 200 - 20000 Hz, Impedance: 4 Ом. Connectivity technology: Wired, Speaker interface type: 3.5 mm. Housing material: Plastic. Width: 156 mm, Depth: 64 mm, Height: 190 mm