universal High Pitch Loudspeaker HF 2 X 500W SUPER POWER DOME LOUD SPEAKER TWEETER Klaxon Tone Loudspeaker For C2.8 Volts500 WattsBuilt-in crossover97dB of pure soundFor all car audio systemsFits anywhereInstant installationMore sound， less energyHigh efficiency dome tweeterNo magnetic field， tapes and credit cards are safePackage included:1 x Car tweeters1 x Clip-on-bases1 x Screws1 x Adhesive tapes