LogiLink Stereo Active Speaker. System type: 2.0 system, Recommended usage: mp3 player, Speaker placement: Portable. RMS rated power: 6 W, Frequency range: 25 - 20000 Hz, Signal-to-Noise Ratio (SNR): 75 dB. Connectivity technology: Wired, Speaker interface type: 3.5 mm, Headphone connectivity: 3.5 mm. Packaging width: 134 mm, Packaging height: 247 mm, Package weight: 740 g. Packaging length: 108 mm, Power source type: USB, Number of loudspeakers: 2 pcs