Lenovo ThinkVision MS30 (S). Audio output channels: 2.0 channels, RMS rated power: 4 W, Front speaker sensitivity: 85 dB. Soundbar speaker RMS power: 4 W, Impedance: 4 ?, Signal-to-Noise Ratio (SNR): 64 dB. Product colour: Black, Operating temperature (T-T): -5 – 40 °C, Operating relative humidity (H-H): 0 – 90%. Connectivity technology: Wired. Width: 256.4 mm, Depth: 34.5 mm, Height: 124 mm