Targmex TZSPK-01. System type: 2.0 system, Recommended usage: notebook, Speaker placement: Portable. RMS rated power: 5 W, Frequency range: 90 - 20000 Hz, Impedance: 4 Ом. Connectivity technology: Wired, Speaker interface type: 3.5 mm, Connector(s): USB. Power source type: USB This is an auto-generated long summary based on the first three features of the first five feature groups.