Features: 1.Good Performance: High sensitivity, high performance, high frequency response, high quality metal, strong sound performance, excellent sound quality. 2.Pleasant Listening: Two?way output, clear and full treble, smooth and pleasant listening, steady and powerful bass, and strong explosive power. 3.High Fidelity: The voice resolution is high, and the detailed description is clear enough. Aluminum surface, high driving efficiency. 4.Excellent Sound Quality: The use of high?density aerospace magnets has strong sound quality and full power. 5.Durable Material: The sturdy speakers and the even thickness of the iron frame ensure good sound quality. Moisture?proof and reduce deformation. 6.Easy Installation: Regular and symmetrical speaker terminals, effective and correct insertion. Support a variety of non?destructive installation templates. Specification: Item Type: Car Speaker_x000D_ Impedance: 4_x000D_ Material: ABS+metal_x000D_ Diameter: Approx. 16.51cm/ 6.5in_x000D_ Frequency Range (hz): 60hz-20khz_x000D_ Audio Sensitivity: 90dB_x000D_ Maximum Power: 500W_x000D_ Minimum Power: 40W_x000D_ Voltage: 12V_x000D_ Application Range: Universal Car Horn