Trust 2.1 Speaker Set SP-3600A, 2.1 channels, 2 W, 18 W, 8.15 x 7.36 x 10.9" (207 x 187 x 278 mm), Wired Trust 2.1 Speaker Set SP-3600A. Audio output channels: 2.1 channels. Satellite speakers RMS power: 2 W. Subwoofer RMS power: 18 W. Dimensions (WxDxH): 8.15 x 7.36 x 10.9" (207 x 187 x 278 mm). Connectivity technology: Wired