MONSTER SIZE [ 2 12 INCH] MONSTER SOUND Unmatched clarity. Speakers are manufactured by the largest well known speaker company on the planet MONSTER LOUD Compared to most [including our standard ones ] Decibels are 18 to 20 points higher. Test was done using a TYT X1 Velcro mount style helmet speakers. Encased in a cloth housing for clear uninterrupted sound. Wired mono with the standard 3.5 jack and a coiled cord outside dia 2.500 Very Important Please read before ordering Speakers are of very high quality. Same brand and make of speakers that are in our PRO 50 CFX headsets But !! 2 things to consider 1.Speaker output depends on radio output. Low output radio wont be as loud as a high output radio. 2.If you are running a loud or open exhaust racecar you should consider ear buds instead of speakers