This product is sold by: Unit.Dimensions: 2.95 X 4.53 X 4.53–1.5” Titanium Super Tweeter–Die Cast Aluminum Frame–1.5” High Temperature Kapton Voice Coil–60 oz. Magnet Structure Weight–400 Watts Peak Power–4-8 Ohms Impedance/Ferro Fluid Enhanced–Sensitivity: 105dB–Frequency Response: 2k-25kHz–Single Pack in Gift Box–Crossover Capacitor Included–4” Diameter/2.5” Mounting Depth