Features: It is voice coil for audio professional -tweeter speakers. 44 core treble for titanium film. Lightweight and portable. As -tweeter speakers accessory. Note: The pattern of the diaphragm may be somewhat different from that in the photo. The pattern around the for titanium film is random, please do not place an order if you mind. Specifications: Item Type: Speaker Film 34.4 34.5 Core Treble Voice Coil Rated Impedance: 8 Ohm Power: RMS 30 for W Diaphragm material: for Titanium Color: Sliver Cylindrical Diagonal Line: 8.2cm/3.23in Back Diagonal Line: 8.4cm/3.31in Outer Circular Diameter: 6.5cm/2.56in Inner Circular Diameter: 3.5cm/1.38in Quantity: 1 PC (other accessories demo in the picture is not included) Package Includes: 1 x Speaker Film 34.4 34.5 Core Treble Voice Coil note: Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls 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. Thank you!