Docooler Speaker Tweeter Loud Audio Super Power Dome for Car Auto a Pair Description: High efficiency dome tweeter More sound, less energy Instant installation Fits anywhere No magnetic field, tapes and credit cards are safe For all car audio systems 2.8 Volts 97dB of pure sound 500 Watts Packing weight:41g/1.44oz Packing size:14*10.7*2.3cm/5.55*4.2*0.9inPackage Included: 2 x Car tweeters 2 x Clip-on-bases 2 x Screws 2 x Adhesive tapes 1 x User manual