Apple launches Powerbeats Pro 2 with built-in heart rate monitoring, active noise cancellation, and improved battery life at $249.99.

Apple has launched the Beats Powerbeats Pro 2, making them the first Apple earbuds to feature built-in heart rate monitoring.

The newly announced Powerbeats Pro 2 seem a bit different, though. Of course, these new buds do all the things you'd expect from a pair of $250 headphones: They have active noise cancelling and transparency mode—the latter of which pumps in sounds from the world around you so you can hear what's going on with your earbuds in.