Features 1、High Performance: High sensitivity, high frequency response, high voice resolution and clear detailed description. 2、Quality Sound: Dual output, the bass sound is steady and powerful, clear and full, the listening is smooth and pleasant. 3、Excellent Features: Moisture proof, not easy to deform, high density magnet, strong sound quality, full power. 4、4Ω Impedance: The bass speaker has 4Ω impedance which deals with the issue of undersized wires present in cars. 5、Premium Material: Made of quality metal and ABS materials, and the aluminium surface for higher driving efficiency. Specifications: Item Type: Car Audio Woofer Material: ABS + Metal Impedance: 4Ω Outer Diameter: Approx. 6.0in/15.3cm Frequency Range: 60hz-20khz Audio Sensitivity: 93dB (±1.5dB) Maximum Power: 500W Voltage: 12V Application: Universal Package List 1 x Car Audio Woofer Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.