Shell - Composite fiberglass shell, quick release system, scratch resistant, UV resistant and fog resistant. Comfort - Removable and washable, breathable, quick dry liner, laser-cut foam, chin curtain and breath deflector. Security - Steel quick release buckle, reinforced chin strap, reflective safety patch, multi-density EPS and neck roll. Ventilation System - Top vent, chin vent and exhaust port. Intercom - Bluetooth intercom working distance up to 1.2 miles (2 km) in open terrain, mesh intercom working distance up to 1.2 miles (2 km) in open terrain with a potential to extend up to 5 miles (8 km) between a minimum of six riders. Bluetooth intercom supports up to 4 riders, open mesh supports a virtually limitless number of riders and group mesh intercom supports up to 24 riders while also supporting up to 9 channels. Audio - Advanced noise control™, built-in SBC codec with wide volume control and a sample rate:max. 48 kHz (DAC), and premium speakers and microphone. Supports FM radio. Battery talk time - Bluetooth up to 18 hours (varies based on LED usage) and Mesh up to 11 hours (also based on LED usage). Lithium polymer battery with a 2.5 hour charge time. Supports IEE 802.11 b/g/n wifi with a working distance with a 10 meter working distance. LED taillight.