Looking to upgrade your helmet communications? The Stilo boom mic is the perfect upgrade for crystal-clear communication with your team. This boom mic features a 3.5mm jack input, allowing the wearer to seamlessly utilize a wide range of in-ear or in-helmet speakers. Looking to upgrade your helmet communications? The Stilo boom mic is the perfect upgrade for crystal-clear communication with your team. This boom mic features a 3.5mm jack input, allowing the wearer to seamlessly utilize a wide range of in-ear or in-helmet speakers. Jack w/ Stilo boom mic Jack w/ Stilo boom mic