Rugged Radios HKP-SPK-MONO MONO VELCRO MOUNT HELMET SPEAKERS WITH 3.5MM PLUGRugged Radios HKP SPK MONO Need a little mood music while going for the double jump? Want a little bass thumping while you take the corner at high speed? Listen to your favorite tunes with the Rugged Radios helmet speaker kit. Choose Clear Hear Speakers or powerful Alpha Audio, both with standard 3. 5mm jack. Low profile speakers fit comfortably in your helmet and deliver the music of your sport! Whether you're dirt biking or cutting canyon corners on