Yamaha NS-B210, 2.0 channels, Wired, 40 W, 75 - 35000 Hz, 6 Ω, White Yamaha NS-B210. Recommended usage: Universal. Audio output channels: 2.0 channels. Connectivity technology: Wired. RMS rated power: 40 W, Frequency range: 75 - 35000 Hz, Impedance: 6 Ω, Sensitivity: 86 dB. Product colour: White