Product Description Warranty Information Reviews Lanzar OPTIBT25 Optidrive 200 Watt Heavy Duty Aluminum Super Bullet Tweeter Aluminum Super TweeterDie Cast Frame1'' High Temperature Kapton Voice CoilNeodymium Magnet Structure100 Watts RMS/200 Watts Rated Power4 Ohms ImpedanceFerro Fluid Enhanced Voice CoilSensitivity: 100dB (1w/1m)Frequency Response: 2.5k-20kHz3.98'' Diameter/2.30'' Mounting Depth 1 Year MFG Warranty