Anthony Gallo Acoustics A"diva Ti. Driver size: 127 mm (5 "). RMS rated power: 1 W, Peak Music Power Output (PMPO): 60 W, Frequency range: 76 - 22000 Hz. Weight: 907 g. Type: Portable speakers, Audio output channels: 1.0, Satellite speaker driver size: 76.2 mm (3 ")