Features: Enhances your auto sound with silk film tweeters featuring built in crossovers for crystal cristalline high frequency reproduction and 91dB signal clearness , specifically engineered for distortion free car modification. High efficiency ABS/metal compound domes delivers 20KHz frequency response with magnetic field free operation, featuring tool free installation and universal 12v compatibility across vehicle models. Ideal for audiophiles upgrading factory systems, DIY car enthusiasts seeking grade acoustics, and sound technicians optimizing stage like sound staging in competition vehicles. Perfect for achieving concert hall vocal clearness during highway commutes, enhancing treble precisions at car meets, or creating balanced soundfields in custom sound builds. precisions engineered 4Ω impedance factory head units while optimized 92dB sensitivity ensures crisp highs without amplifier strain, scientifically positioned at ear level pillar for immersive sound staging. Specifications: Material: Plastic Size: about 53x55x56.5mm/2.08x2.16x2.22inch 30x50.5mm/1.18x1.98inch calibers: 35 (mm) Power supply electric: 12 (V） Power: 10 (W Impedance: 4 (Ω) Sound level: 92 (db) Current: 2 (A) electric: 13 (V) Operating temperature: 30℃ Sensitivity: 92 Package Includes: 1 set Car Tweeters note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the difference between different monitors, the picture may not reflect the actual color of the item.