Features： 1、Universal Component: The high grade round tweeter is extensively applicable to audio systems of various brands and models cars. 2、Great Characteristic: High sensitivity, high performance, high frequency response, strong sound performance, excellent sound quality. 3、High Voice Resolution: The voice resolution is high, and the detailed description is clear enough. Moisture‑proof and anti deformation. 4、Quality Sound: Two way output for clear and full treble, smooth and pleasant listening, providing more fun for your boring driving. 5、High Quality Material: High density aerospace magnet for strong sound quality and full power, and aluminium surface for high driving efficiency. Specification： Item Type: Audio Tweeter Material: Magnet + Aluminum + ABS Maximum Power: 180W Minimum Power: 30W Frequency Response: 60Hz-21KHz Sensitivity: 91±1.5dB Impedance: 4 ohms Application: Universal for car audio system. Package List： 1 x Pair of Audio Tweeter 1 x Pair of Speaker Covers 8 x Screw 2 x Connection Line