Genius SP-U115. System type: 2.0 system, Recommended usage: universal, Speaker placement: Portable. RMS rated power: 1 W, Frequency range: 200 - 18000 Hz, Impedance: 8 Ом. Connectivity technology: Wired, Speaker interface type: 3.5 mm, Headphone connectivity: 3.5 mm. Housing material: Plastic. Type: Portable speakers, Power source type: USB