The two-speaker system provides rich, full sound and great convenience Operates in the frequency range of 100 Hz to 20 kHz Designed for select Dell Precision/ Latitude Notebook / Precision WorkStation / OptiPlex Desktop Overview Engineered for superb sound and styled for ultimate convenience, the Dell A225 Two-piece Stereo Speaker System delivers a perfect combination of performance and value in a smart, well-designed form. This USB powered system delivers up to 1.2 W total RMS output power and includes two speakers that can be placed on either side of your monitor. The system features volume control with on/off switch on one speaker. With features that include rich, full sound and great convenience, these ROHS-complaint speakers make a perfect audio companion.