HP Multimedia 2.0, 2.0 channels, Wired, 2 W, 150 - 20000 Hz, Black HP Multimedia 2.0. Recommended usage: Universal. Audio output channels: 2.0 channels. Connectivity technology: Wired. RMS rated power: 2 W, Frequency range: 150 - 20000 Hz, Sensitivity: 40 dB. Product colour: Black