Features: Experience unparalleled auditory with our 2.5inch loudspeaker featuring neodymium magnetic and imported silk diaphragm enhances sound. This tweeter boasts a frequency ranging of F0-40kHz, rating impedance 6ohms. Sensitivity of 91dB, ensuring powerful and nuanced sound reproduction and offering excellent high frequency extension. For music enthusiasts and home theater aficionados, this speaker is perfectly for those who demand exceptionally auditory detail and precise in their experience. Perfectly suited for Bookshelves speakers this tweeter enhances any auditory environment with its strong penetration Specifications: Diameter :about 66mm/2.6in Component: Metal Quantity: 1PCS/2PCS Power: 15W up to 30W Rating Impedance：6Ω Sensitivity：91dB Sound film ：Silk membrane Features Strong Magnet Silk Membrane Color: Black Package Includes: 1PC Neodymium Magnetic Speaker note: Due to the problemsof lighting effects, there will be tolerances in product, please understand. Please allow 0-1cm error due to manual measurement