EMGETON iXSOUND4 . System type: 2.0 system, Recommended usage: other, Speaker placement: Portable. RMS rated power: 10 W, Frequency range: 90 - 20000 Hz, Impedance: 4 Ом. Connectivity technology: Wired, Speaker interface type: USB/3.5mm. Width: 75 mm, Depth: 75 mm, Height: 70 mm. Operating temperature range (T-T): -10 - 40 °C