Features: 1.Low Frequency Attenuation: Car loudspeaker built in capacitor attenuates the low frequency range to ensure the best sound reproduction over a wide frequency range. 2.Clear Sound: The dome tweeter produces crisp, glossy highs to enhance the clarity and detail of music and vocals. 3.2 Way System Design: The tweeter is ideal for 2 way system design, 150W maximum power, 4 impedance. 4.Compact Design: Dome tweeter speake using a compact design, in the car does not take up too much space. 5.Metal Aluminum: Car loudspeaker is made of metal aluminum, easy to install, suitable for all car audio systems. specification:Item Type: 150W Dome Tweeter Material: Metal Aluminum Color: Black Quantity: 2pcs Maximum Power: 150Wx2 Impedance: 4 Frequency Range: 80-22KHz (-20dB) Sensitivity: 91dB (1.5dB) Scope of Application: Applicable to All Car Audio Systems PackageList: 2 x Tweeter 2 x Speaker Base 2 x Cable