Technaxx MusicMan. System type: single speaker, Recommended usage: universal, Signal-to-Noise Ratio (SNR): 80 dB. RMS rated power: 6 W, Frequency range: 150 - 18000 Hz, Impedance: 4 Ом. Connectivity technology: Wired, Interface: USB/3.5 mm. Power source type: Battery, USB, Battery life (max): 5 h, Battery capacity: 600 mAh. Width: 170 mm, Depth: 60 mm, Height: 75 mm