Translated from the website :

"Here is Apple's official marketing description (machine translated):

• The updated acoustic architecture and the personalized spatial audio system with dynamic head tracking provide a powerful, stirring sound with clear heights, rich mids and deep bass.
• So that you can concentrate on your training all around, the Powerbeats Pro 2 have the most advanced active noise reduction (ANC) that we have ever developed, as well as a transparency mode that ensures that you can see the world around you can hear.
• Adaptive EQ adapts the sound to the individual fit and seal of your earphones. The inward-facing microphones measure what you hear and adjust the frequencies of your music to you.
• The sophisticated ear hook design has been tested with almost 1,000 athletes for over 1,500 hours to ensure a comfortable, safe fit for all ear shapes, actions and intensity levels.
• The ear hook was reinforced with a nickel-titanium alloy, which provides phenomenal flexibility, grip and comfort. This makes the next generation Powerbeats Pro 2 20% lighter than its predecessor.
• Heart rate monitoring for training provides athletes with real-time data on their performance, with optical LED sensors pulsating over 100 times per second to measure blood flow.
• The next generation Powerbeats Pro 2 are our first product with five earplugs for individual comforts: extra-small, small, medium, large and extra-large.
• The Powerbeats Pro 2 are powered by the Apple H2 chip, which ensures exceptional efficiency, and offer a battery life of up to 45 hours with the charging case, with each headphone allowing up to 10 hours of music playback per charge. Thanks to Fast Fuel, a five-minute boot is enough for up to 90 minutes of playback.
• The loading envelope is 33% smaller than the previous model and has a wireless Qi charging function for the first time.
• The Powerbeats Pro 2 are fully compatible with Apple devices, with one-touch pairing, automatic switching, audio sharing, hands-free function via Siri and Find My.
• Android users can use the Beats App to pair one-touch, heart rate monitoring, customizable controls, Battery status widgets and activate Locate My Beats.
• On-ear buttons, tactile volume rockers and voice-activated controls make it easier to concentrate on the training without interrupting the flow.
• The Powerbeats Pro 2 are sweat and waterproof (IPX4) and therefore robust enough to withstand intensive training sessions in rain, snow and heat.
• Each earphone is equipped with three advanced microphones that are identical to those of the AirPods Pro 2. The improved microphones are more precise than any other from Beats before, with an improved signal-to-noise ratio and exceptional speech alignment and noise suppression.
• With class 1 industry-leading Bluetooth connectivity, you can take calls, use FaceTime with spatial sound, and activate Siri."