GDM Demon Motorcycle Helmet with Bluetooth

GDM designs DOT-certified motorcycle helmets, Bluetooth headsets and riding gear for everyday riders, in Los Angeles since 2013. GDM started in Los Angeles in 2013 with a simple goal: helmets and gear that look good, fit well and protect riders on every ride. Today our lineup covers full face, modular, dual sport, retro and youth helmets, Bluetooth headsets with intercom, and riding gear. Every GDM motorcycle helmet is certified to the U.S. DOT standard, FMVSS No. 218. GDM began in Los Angeles in 2013, started by riders who wanted helmets that look good, fit right and meet the DOT standard. Our helmets and gear come ready to ride: extra shields, Bluetooth headsets with intercom and complete gear sets, in styles from retro to dual sport. Because riders write to us. We hear from riders whose GDM helmet was with them on a day they will never forget. That is why every helmet we sell is DOT certified. The GDM DEMON HyperSonic pairs a DOT FMVSS 218 certified full face helmet with the GDM HyperSonic Bluetooth 5.0 headset for calls, music, GPS and rider-to-rider intercom. Clear shield installed, plus the shield color you choose. Take calls, play music and hear GPS directions hands-free. One button does it all, plus your phone's voice assistant. Talk with another rider or your passenger up to 100 meters away. Works with another GDM HyperSonic headset. Up to 12 hours of talk and music and 120 hours of standby on one charge. USB charging cable included. Waterproof unit with HiFi stereo speakers, a wind-resistant noise-canceling microphone and FM radio. Mirrored silver finish that cuts glare on bright days. For daytime riding. Gold mirror finish that cuts glare and stands out. For daytime riding. Blue iridium mirror finish for bright sun and glare. For daytime riding. Classic smoke tint that takes the edge off bright sun. For daytime riding. DEMON HyperSonic DEMON GDM Bluetooth Helmet BEAST Bluetooth Is the Bluetooth headset pre-installed? No. The GDM HyperSonic headset comes in the box and mounts to the side of the helmet with the included hardware. The speakers go inside the helmet over your ears. Which size should I order? Measure around your head about 1 inch above your eyebrows. S 21 5/8-22 in, M 22 1/4-22 7/8 in, L 23 1/4-23 5/8 in, XL 24-24 3/8 in, 2XL 24 3/4-25 1/4 in. A new helmet should feel snug. Between two sizes? Order the larger one. Can I talk to another rider or my passenger? Yes. The HyperSonic intercom connects two riders up to 100 meters (about 330 feet) apart. Each helmet needs its own GDM HyperSonic headset; extra headsets are sold separately. How do I get the best sound at highway speed? Place each speaker directly over your ear, keep the helmet snug and close the shield. Wind noise rises with speed in any helmet, so speaker position makes the biggest difference. Can I ride at night with the colored shield? No. Use the clear shield at night and in low light. The tinted, iridium, chrome and gold shields and the drop-down sun visor are for daytime riding.