Genius SW-2.1 355. Woofer size: 101.6 mm. RMS rated power: 10 W, Frequency range: 20 - 20000 Hz, Signal-to-Noise Ratio (SNR): 75 dB. Weight: 2.62 kg. Type: TV/Monitor speakers, Audio output channels: 2.1, Subwoofer dimensions (WxHxD): 136 x 198 x 248 mm