Boss Audio TW50 5-Inch Bullet Tweeter 5 inch Aluminum Bullet Tweeter Single 500 Watts MAX Power Handling Mounting: Flush 3 Year Platinum Dealer Warranty Power handling, Peak 500 Watts; Magnet Structure, Strontium Impedance, 4-8 ohm; Frequency Response, 2-25kHz SPL 1 watt/1 meter, 107db Type, bullet; Mounting, flush mount 107 Db