Description: High efficiency dome tweeter More sound, less energyInstant installationFits anywhereNo magnetic field, tapes and credit cards are safeFor all car audio systems2.8 Volts97dB of pure sound500 WattsPacking weight: 41g/1.44ozPacking size: 14*10.7*2.3cm/5.55*4.2*0.9inPackage Included: 2 x Car tweeters2 x Clip-on-bases2 x Screws2 x Adhesive tapes1 x User manual.