1、The tweeter cover is made from synthetic metal PE hard materials, which protect the diaphragm better 2、Professional audio capacitance, exquisite pure copper wiring port 3、Nonmagnetic baskets maintain their integrity and accuracy even under the most demanding conditions 4、Compact size, easy to install and fits anywhere 5、Suitable for all car audio systems with 12V DC power supply Features: The tweeter cover is made from synthetic metal PE hard materials, which protect the diaphragm better. Professional audio capacitance, exquisite pure copper wiring port. Nonmagnetic baskets maintain their integrity and accuracy even under the most demanding conditions. Compact size, easy to install and fits anywhere. Suitable for all car audio systems with 12V DC power supply. Specification: Material: plastic, metal Color: shown as picture Power supply: 12V DC Maximum Power: 150W Sensitivity: 91dB Frequency response: 80Hz~22KHz Impedance: 4 ohm Upper Diameter: 50mm / 2in Buttom Diameter: 40mm / 1.6in Height: 30mm / 1.2in Package Weight: approx.238g Package List: 2 * Car Tweeters 2 * Black Shell 2 * Screws 2 * Adhesive Pads 2 * Cables Note:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.