Pyle-Pro PDBT13 Super Bullet Horn Tweeter 3.75 Inch Aluminum Die-Cast Bullet Horn - 1 Inch Titanium Diaphragm 20 oz. Magnet - 1 Inch High-Temperature Voice Coil 4 Ohm Impedance - 350 Watts Max. Frequency Repsonse: 3.5 kHz - 23 kHz SPL: 98dB (1W/1M)