ION Desk Rocker. RMS rated power: 10 W, Frequency range: 80 - 20000 Hz, Signal-to-Noise Ratio (SNR): 88 dB. Connectivity technology: Wired, Headphone connectivity: 3.5 mm. Audio output channels: 2.0, Satellite speaker driver size: 25.4 mm (1 "), Subwoofer driver size: 76.2 mm (3 ")