Beats just released its long-anticipated Powerbeats Pro 2. Here's how to measure your heart rate with these earbuds during a workout.

Apple Tuesday announced the long-awaited debut of Powerbeats Pro 2 earbuds. The new headphones arrive nearly six years after the original Powerbeats hit

The Powerbeats Pro 2 ($250) was hardly a secret. Although Beats officially announced the new fitness-focused earbuds today, it has been teasing them since last September. And over the last few weeks,