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The iconic ear hooks remain, though the design is a bit more modern and slimmer overall.

Most important, though, are the upgrades made under the hood.

Powerbeats Pro 2 in Hyper Lilac in front of case

The heart rate sensor inside the Beats Powerbeats Pro 2.

Beats has been working towards this feature set for Powerbeats Pro 2 for quite a while.

It took Beats' own development of features paired with Apples technologies to get it across the finish line.

So, lets unpack Powerbeats Pro 2 a bit more.

Powerbeats Pro 2 in Hyper Lilac

The heart rate sensor inside the Beats Powerbeats Pro 2.

Apples AirPods Pro 2 was the first.

Thats why Beats tested these with over 1,000 athletes.

Its really tiny, as you might tell from it in the palm of my hand.

Closing the Powerbeats Pro 2 (Electric Orange) case

The sensor contains an LED sensor, a photodiode, an optical lens, and an accelerometer.

When you have both Powerbeats in your ears, it will take a reading.

I asked Costello how hard it was to deliver a heart-rate sensor in an earbud and ensure its accuracy.

The heart rate sensor inside the Beats Powerbeats Pro 2.

The heart rate sensor inside the Beats Powerbeats Pro 2.

It was a big challenge, but we got there, he told me.

You might also notice that Apple Fitness Plus isnt here at launch.

It also feels very much like a Beats move since so many athletes opt to use Beats products.

An up close shot of the heart rate sensor inside the Powerbeats Pro 2

An up close shot of the heart rate sensor inside the Powerbeats Pro 2.

Each earbud magnetically attaches inside at the appropriate spot and will recharge here.

Thats a sizeable improvement over the original.

Well be back soon with a full review and a deeper dive into the fitness features.

Powerbeats Pro next to Powerbeats Pro 2 (case open)

(Image credit: Future/Jacob Krol)

Powerbeats Pro next to Powerbeats Pro 2 (case closed)

(Image credit: Future/Jacob Krol)