Bogen WB1EZ Speaker - Walnut, Black Type: Speakers Frequency Response: Minimum Frequency Response 50 Hz - Maximum Frequency Response 12 kHz Nominal Impedance: Impedance:4.9 Kilo Ohm Dimensions & Weight: Depth:5.3 Weight (Approximate):6.00 oz Height:9.5 Width:9.5 Parts: 3 Year Limited