Forget powders, pills, or shots — the fastest, most reliable way to boost your athletic performance might be inside your skull. The Halo Sport Neuropriming Headset uses pulses of energy to improve your training. Called neuropriming, it lets your motor cortex send stronger, more easily read signals to your muscles, so more fibers are activated with each rep, and strength is gained faster. Used in conjunction with specially designed workouts, it can also help with the learning and sharpening of skills like swings, kicks, and throws. It connects to your phone wirelessly, and also works as a pair of Bluetooth headphones, so you don’t need to take them off once the priming is done and training begins.