Cirkuit Planet CKP-SP1019. System type: 1.0 system, Recommended usage: universal, Speaker placement: Portable. RMS rated power: 5 W, Frequency range: 90 - 20000 Hz, Impedance: 4 Ом. Connectivity technology: Wired, Speaker interface type: USB, Connector(s): 4-p. Housing material: Plastic. Width: 205 mm, Depth: 30 mm, Height: 25 mm