Protection and Simplified Communication The convenience of Bluetooth® communication built-in to your helmet, introducing the Sena Outforce. The DOT-rated Outforce is a sleek full‑face helmet with a built-in communication system that allows for 4-way Bluetooth® intercom conversation and smartphone pairing for music, GPS, and more. Features Shell — Single shell polycarbonate ABS and multi-density EPS Visor — Clear face shield and inner sun visor, quick release system, scratch-resistant and UV resistant Bluetooth — Bluetooth 5.0, headset profile (HSP), hands-free profile (HFP), advanced audio distribution profile (A2DP) and audio video remote control profile (AVRCP) Audio — Advanced Noise Control™ and built-in SBC Codec Battery — Lithium polymer battery with talk time lasting up to 12 hours with a charging time up to 2.5 hours Removable and washable liner with breathable mesh which allows air flow through helmet Steel quick release buckle and reinforced chin strap Ventilation system consists of top vent, chin vent and exhaust port Intercom works up to 0.6 miles (900 m) in open terrain and supports up to 4 riders Meets DOT safety standards Sizing