Powerbeats Pro 2 review: the workout buds to beat

After an epic wait, the Powerbeats Pro 2 are finally here. No, seriously. The original Powerbeats Pro released nearly six years ago, roughly an ice age as far as gadgets go. Turns out, it was worth it thanks to new active noise canceling, a transparency mode, and heart rate monitoring. None of these features are new to the category, but they are fresh to the Powerbeats. The only things unchanged with the Pro 2 are its IPX4 rating and the $249.99 price tag — which, given the state of…