Kevin Leiser starts with his eyes closed and his back to the target. As he turns and raises the compound bow, he keeps his eyes shut, listening to the beeping in his headphones. He adjusts his aim until the beeps merge into a solid tone that comes through evenly in both ears. He draws back an arrow, makes a few final adjustments, and fires.
Click here for original story, Northeastern students design and build devices to help improve the lives of individuals with disabilities
Source: Phys.org