From Discount Moto Gear, upgrade to the ultimate sound with CARDO's Freecom-X/Spirit JBL kit. Suitable for any brand, this 45mm speaker set with a standard 3.5mm jack provides universal compatibility. Enjoy an extra boost with the new JBL sound processor and firmware specially designed for FREECOM series owners. Not a FREECOM owner? No problem! This product will still enhance your headset audio experiences immensely.