Function: 1 500W Card Dome Tweeter, High Efficiency, Powerful Clear Sound Quality, Low Energy 2. No magnetic field, built-in crossover, high sensitivity, extended frequency response 3 Suitable for most cars, easy to install and quick, no complicated operation required. 4 Made of high quality ABS plastic, high strength, sturdy and durable, long life. 5 Exquisite workmanship, lightweight, easy to carry, easy to carry. Application: Wiring: Black Wire: Negative White Wire: Positive Specifications: Item Type: Car Tweeter Material: ABS Plastic Color: Black Voltage: 12V Impedance 4Ω