Features:- Helmet:- Safe & Comfortable - AHR RUN-F helmet features impact resistant & lightweight ABS shell with high-density EPS can absorb impact & shock; Meets American DOT certification- Sufficient Ventilation - Ventilation opening system for air intake and exhaust, providing a cool and comfortable riding; Streamlined aerodynamic design reduces wind noise and drag- Dual Visor - Wide visual field clear visor provides strong protection from impact or wind; Sun shield visor for sun blocking- Easy to Clean - Removable & washable liner & cheek pad for easy & regular cleaning- Bluetooth Headset:- Bluetooth 5.0 Intercom - Support 2 riders' intercom at the same time with the highest ideal speed of 120 mph and the longest distance up to 1093 yards (1000 m)- CVC Noise Control Technology - Cuts down background noise to ensure clear sound quality even riding at high speed and reduces acoustic echo, providing a more natural 2-way conversation- Multi-function - Supports answering or dialing the call, rejecting or hanging up the call, and auto-receiving calls; Allows to seamlessly switch among phone calls, intercom conversation, music, FM- Long Battery Life - With 700mAh battery for 18 hrs mobile phone call or 16 hrs intercom after fully charged; FCC, CE, RoHS certificated- Helmet:- Safe & Comfortable - AHR RUN-F helmet features impact resistant & lightweight ABS shell with high-density EPS can absorb impact & shock; Meets American DOT certification- Sufficient Ventilation - Ventilation