They are designed to increase your brain’s neuroplasticity, which in English translates to learning movements faster—from playing piano to swimming, cycling, or running. The Halo Sport 2 Headphones works by applying a small electric current to the part of your brain that controls movement, activating neurons so they fire more often when you train. The more neurons fire together, the faster pathways are built in your brain. According to Halo, more than 4,000 peer reviewed papers have backed their claims, including improving your running endurance by 15 percent. Now there’s a gift we’d all like to see under the tree this holiday!