Features: 1.The high efficiency dome tweeter offers stable high frequency response, pitch accuracy and natural sound. 2.With built?in crossover, it suitable for all car audio systems, which has small size, is simple for installation and suitable for any place. 3.The car tweeter is made of high quality ABS and metal, which is rugged, antiwear, corrosion resistant and durable for long?term use. 4.120W maximum power, 150?20000Hz frequency corresponding, 4ohm impedance, stable performance. 5.Superior magnets with high power can be used to control the moving voice coil. No magnetic field, tapes and credit cards are safe. Specification: Item Type: Car Tweeter Material: ABS + Metal Maximum Power: 120W Rated Power: 45W Frequency Response: 150-20000Hz Impedance: 4 Ohms Sensitivity: 92dB Application: Universal for Car Audio System