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Review on ๐Ÿƒ GO2 Endurance Workout Device: Enhance Breathing & Oxygen Flow During Running, Cycling, and High-Altitude Activities - Made in USA by Jeff Davidson

Revainrating 4 out of 5

It seems to work in capital letters

I bought the device according to the description and reviews. Then I went running and ran my best 2 miles in years. My best average pace without the device was 12:41 for 2-3 miles, with the device I was able to run 2 miles at a pace of 10:57, and the best I've run in a long time was 10:10. I'm curious if this will continue. Update: I just cut my 2020 5k fastest by 4 minutes. I like this device.

Pros
  • New
Cons
  • I will add later