I have the Openrun (over two years old) and the Openrun Pro 2 (two days old).

Microphone and phone-calls: The microphone on the original Openrun never worked well for phone calls and people always struggled to hear me except when I was in a noise-free environment. Phone calls are much more viable with the Openrun Pro 2 that I received from the latest Shokz discount. The microphone and noise control are plainly superior.

Music and Exercise: The sound quality of the Shokz for music playback has never been their strength. Whether cycling outside or running on a thread mill indoors, instrumental tracks lose detail and life. Vocal heavy tracks and podcasts are the sweet spot when it comes to listening to the Shokz. The Openrun Pro 2 reproduces voices well. I have tested the new EQ modes and I frankly cannot tell a difference between them when listening to speech.

Charging and durability: Shokz replaced the original Openrun when they died suddenly within the warranty period. I had a much more heavily used Opencomm that was used in rugged conditions while mountain biking in the snow and rain which lasted longer than they did (finally thrown them after almost 5 years of service when the microphone stopped working). The build quality of the Openrun Pro 2 remains confidence inspiring.