Features: . High voice coil and sound film components with left and right wiring. Lightweight and portable design. Suitable as a tweeter speaker accessory. Note: The voice coil is made of film material, which may deform if pressed from the front. It can be restored by gently pressing from the back. This does not affect performance. If this is a concern, please do not purchase. Specifications: Voice coil DCR: 5.4Ω (compatible with 4.1–8Ω) Material: Tetoron Color: Black Size: (approx) 20mm sound film: Outer diameter 29mm / secondary outer diameter 26mm / total height 5mm 20mm voice coil: Inner diameter 20mm / height 4.5mm / roll width 1.6mm 25mm sound film: Outer diameter 38mm / secondary outer diameter 37mm / total height 7mm 25mm voice coil: Inner diameter 25.4mm / height 5mm / roll width 2.3mm Quantity: 1 Set (2 Pieces) (other accessories shown in image are not included) Notes: 1. Conversion: 1cm = 10mm = 0.39inch 2. Please allow 0–1cm measurement deviation due to manual measurement. Ensure you are comfortable with this before purchasing. 3. Due to monitor display differences, the actual item color may vary slightly from the image. Package Includes: 2 Pieces Tweeters Diaphragm Voice Coil (no retail packaging)