Trust 5.1 Surround Speaker Set SP-6210, 5.1 channels, 40 W, 5.31 x 7.2 x 7.6" (135 x 183 x 193 mm), Wired Trust 5.1 Surround Speaker Set SP-6210. Audio output channels: 5.1 channels, RMS rated power: 40 W. Subwoofer dimensions (WxHxD): 5.31 x 7.2 x 7.6" (135 x 183 x 193 mm). Connectivity technology: Wired