OUR QUALITY: 2-Way Coaxial Speaker. Black Fiber Glass Cone with Rubber Edge. BASV Voice Coil, 1.14" PEI Dome Tweeter, and Neodymium Magnet. PERFORMANCE SPECS: 3-Ohms, Sensitivity: 90dB. Frequency Response: 55-22KHz, Strontium Magnet: 3.94x1.77x0.7", Y30 (19.88oz) PERFECT SOUND: Tremendous Bass Response, With High Out-Put Frequencies. Built-In Tweeter, And Full Range Of Sound. SIZE: 9 x 6 x 7.5 inches. Fit Almost Every Car, Truck, Or SUV 1 YEAR WARRANTY: We Provide One- Year Manufacture defected limited Warranty From The Date Of Purchase For All DS18 Product.