HP Digital Portable Speaker. System type: single speaker, Speaker placement: Portable, Driver size: 40 mm. RMS rated power: 1.1 W, Frequency range: 180 - 20000 Hz, Signal-to-Noise Ratio (SNR): 78 dB. Connectivity technology: Wired, Speaker interface type: USB. Width: 184 mm, Depth: 50 mm, Height: 42 mm. Power source type: USB