Modular Bluetooth® Motorcycle helmet with Sena integrated intercom system By CastleX Bluetooth By Sena Communications Sena Features: Bluetooth® 5.1 System Built-in speakers & mic 4-way intercom HD intercom Intercom range 900m/0.6mi Modular design utilizes single button action to raise chin bar Aerodynamic, modern shell design created with CAD technology Shell constructed with Advanced Polycarbonate Composite injection molding Multi-density EPS liner including placement in chin bar laterals Anti-scratch hard coated, optically correct clear face shield utilizes a quick release shield replacement system Rider friendly drop down sun visor system Fitted standard with Smoke tint drop down sun visor Eyeglass friendly cheek pads Exceeds DOT FMVSS No. 218 Standard Removable and washable interior padding system offers a plush fit and wicks perspiration Raised chin bar lock system Quick release chin strap buckle system offers micro adjustments for secure comfort Advanced ventilation system allows air to easily flow front to back via the air flow channels in the EPS liner Optional face shields and sun visors sold separately 2 Year Warranty