Is your hoodie wired for sound? Yep, the Rainbow Stripe HoodieBuddie has built-in their HB3 Technology… that means that the hoodie has built-in earbuds. Yep, you heard that right, this hoodie has built-in earbuds. You put your MP3 in your pocket and plug it into the earbud jack that’s already there, and the sound travels up through the built-in wires to the earbuds that come out near the collar. The wiring is made so that you can wash the hoodie without worrying about taking them out. Yep, now your clothes are wired for sound.