You know you need these. Gireo TuneUps™ by Skull Candy for your Giro helmet come with stereo quality drop in speakers with 40 mm power drivers, an inline mute button for when your bud on the chair asks you some stupid question, and a volume control dial for when the riding gets even more intense.
Sound by SkullCandy
Installs in minutes without tools
Compatible with all Giro adult helmets