Stay connected as you go biking with this Coros LINX Bone Conduction cycling helmet. This helmet uses technology that turn audio into vibrations that go to your inner ear from the tabs of your helmet strap. Be aware of your surroundings by being able to hear ambient sounds while riding. It is connected to your phone with bluetooth technology so you don't need any wired headphones. This helmet also has the special ability to send a call to your emergency contact upon impact. You can be sure that your loved ones will be alerted immediately if something were to happen to you. Ride safe and in style with this new high tech bike helmet.