Features: brand new and high quality It applies to home theater system, professional and compression driver. It sounds extremely clear and no noise.It is highly reliable and low consumption. Imported titanium film, greater sound pressure than resin film. It is voice coil for professional tweeter speaker. Lightweight and portable.Convenient for you to store and manage Specifications: Material:Titanium Coil diameter:Approx.72.2mm/2.02inches VC size:72.2mm VC Bobbin Material:KSV VC wire Material:CCAW Diaphragm Material:Titanium Diaphragm Diameter:91mm Diaphragm Height:14.5mm Diaphragm Thickness:0.05mm Nominal Impedance:7.2ohm Total Diameter:106.5mm Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Treble Voice Coil Reel