Hercules XPS 2.0 10 2.0 Multimedia Speakers (Black) 2 piece multimedia speaker kit 5 Watts RMS total output power. 10 Watts Peak Power. Satellite dimensions: 25cm H x 6.5cm W x 6cm D Rectangular shaped speakers (5cm x 9cm), for use on flat surfaces (not wall mountable) Volume control knob on right satellite