Features: Treble voice coils speaker film, a professional high-pitched speaker. Made with advanced materials and techniques to deliver clear and high-fidelity sound quality. High sensitivity, low distortion, and wear-resistant design. Effectively enhances sound details and clarity. Suitable for home theaters, speaker systems, performances, and other applications requiring quality audio. Specifications: Type: A 34.4mm, B 44.4mm, C 51.3mm, D 72.2mm, E 74.5mm (optional) Size: As shown in pictures Voice coil diameter: 34.4mm, 44.4mm, 51.3mm, 72.2mm, 74.5mm Power: Up to 40-100W Impedance: 8 ohms Direct current resistance: 6.2 ohms Border color: Silver Border material: Plastic and metal Sound film material: Titanium film Coil material: Copper-clad Note: Allow 1-2 cm variation due to manual measurement. Slight color differences may occur due to variations in display resolution. Package includes: 1 x Treble Voice Coils Speaker Film