ilm bluetooth integrated modular flip up full face motorcycle helmet sun shield mp3 intercom (xl, red) ilm <b>*****size chart*****</b><br><br> m (55-56 cm,211⁄2" - 22" inch)<br> l (57-58 cm,221⁄4" - 223⁄4" inch)<br> xl (59-60 cm,23" - 231⁄2" inch)<br><br> <b>*****ilm stealth bluetooth helmet*****</b><br><br> ✔ listen to music via your bluetooth compatible mp3 player. <br> ✔listen to gps voice commands. <br> ✔one touch control for call answering, rejecting, and redialing. <br> ✔incoming phone call overrides intercom, music, and navigation audio. <br> ✔lithium-polymer battery with a power charger. <br> ✔built-in anti-noise microphone. weather resistant.<br><br> it comes with a groovy outlook and comes in a sturdy, quality construction. it is packed with an integrated bluetooth which connects easily with your phone and lets you take incoming or outgoing calls on the go.<br><br> at the same time, the bluetooth connects quickly to any mp3 player and lets you listen music through the high-quality twin speakers mounted on both sides of the helmet’s interior. the bluetooth of this helmet also supports an intercom between two riders over a distance of up to 1000 feet.<br><br> once charged, the helmet easily lasts for up to 8 hours of continuous talk time or 110 hours on standby. a little on the pricier side, the helmet is perfectly suited for someone who is looking for a bluetooth helmet with stylish looks.<br><br> <b> how to stop your visor fogging up</b><br><br> <b>1. open your visor</b><br> pretty obvious, but opening your visor means exhaled air doesn’t hit the visor and the increased ventilation forces it away.<br> <b>2. increase ventilation</b><br> open all your vents(chin & top), especially those around chin to help blow exhaled air away from the visor. <br> <b>3. use anti-fog visor</b><br> get extra ionized anti-fog visor please search for b06xjv59qb in amazon search bar.