STRYKER - Sena communication, full-face protection, and world-class SOUND BY Harman Kardon. Stryker is Sena's latest full-face smart helmet, equipped with both Mesh Intercom™ and Bluetooth® Intercom technology plus premium speakers and microphone by the audio experts at Harman Kardon. Stryker is a sport touring helmet with seamlessly integrated speakers and microphone that brings a new level of precision and clarity to in-helmet audio. The Stryker helmet is packed with premium features including an integrated taillight and a convenient retractable sun visor. The helmet features a DOT-rated composite fiberglass shell and offers an impressive seven-vent design with an intermediate oval fitment. Stryker's features include: Premium SOUND BY Harman Kardon speakers and microphone. Full face helmet design. Integrated mesh and Bluetooth intercom systems. Retractable sun visor. LED taillight.