Feature: 1. High efficiency dome tweeter. 2. More sound, less energy. 3. Instant installation. 4. Fits anywhere. 5. No magnetic field, tapes and credit cards are safe. 6. Built-in crossover. 7. For all car audio systems. 8. High sensitivity and smooth, extended frequency response . Specification: Features: High efficiency dome tweeter. More sound, less energy. Instant installation. Fits anywhere. No magnetic field, tapes and credit cards are safe. Built-in crossover. For all car audio systems. High sensitivity and smooth, extended frequency response . Specifications: SPL:98 dB (1W/1M) Size:60.9x50.8mm Color: Black Line Length:18cm Product Weight : 75 G / 2.65 Ounces Product Dimensions (L*W*H) : 138*140*30 MM / 5.43*5.51*1.18 Inches Package Weight : 75 G / 2.65 Ounces Package Dimensions (L*W*H) : 138*140*30 MM / 5.43*5.51*1.18 Inches Note : Before buying, please confirm installation size, ensure the length and height of machine panel is suitable for your car. Before installation, please carefully check the car horn lines, if grounding or collising, please reconnect the lines before linking our machine, otherwise it may burn the machine. Packing List: 2 x Speaker Package List: 2 x Speaker