Key specifications of SENA ECE 22.06 helmets: Safety Certification: Certified according to the new ECE 22-06 standard, which includes stricter tests for impacts and rotational effects. Communication System (Intercom): Mesh Intercom™ technology (in some models like Impulse) to connect with up to 24 riders. Bluetooth 5.1 technology (in models like Outrush-R) for HD Intercom connection with up to 4 riders. Audio: High-quality speakers and microphone from Harman Kardon (in the Impulse model) for superior audio performance. Design and Structure: ABS polycarbonate shell. Retractable sun visor. Removable and washable inner lining. Pinlock compatibility: The helmet is ready for Pinlock anti-fog lens installation. App Connectivity: Compatible with the SENA Motorcycle App for helmet settings and updates * Unused *Size in the picture