Dash Smart Earphones are the innovation that I wanted as a high school student! These earbuds fit snugly within your ear and are designed with athletics in mind. This means two things: 1, they aren’t falling out of your ear while you’re doing whatever activities you’re engaged in. 2, They track your actions including steps, distance, your heart-rate, energy usage and other data, then feed that information back to your smartphone via Bluetooth. With a built in audio player and 4GB of data and a battery that should last about 3 hours, these earphones are the greatest development in portable audio and self data monitoring!