Edifier S330D. Woofer size: 106 mm. RMS rated power: 72 W, Frequency range: 55 - 20000 Hz, Signal-to-Noise Ratio (SNR): 85 dB. Connectivity technology: Wired, Headphone connectivity: 3.5 mm. Weight: 8600 g. Speaker power: 36 W, Audio output channels: 2.1, Subwoofer dimensions (WxHxD): 246 x 286 x 246 mm