Great idea! I would love the opportunity to test these out. I'm a runner and graphic designer. I usually have headphones on for most of work day and during exercises and running. The office has a full gym with classes, so I'm usually in there 3 days a week or outside running.
My test plan would the plan of the average user who listens to music at work and while exercising.
During work these would stay paired to my work computer during the day while the Soundbuds Slim+ would stay on me. I usually travel in a 20'-40' radius of my desk, so I would test the distance they remain paired to the computer as well as the audio quality the further from my desk I go. On a normal day, I'll have my current bluetooth headphones strapped to my head for about 6 hours, but have been on for over 8 hours from time to time. So the battery life would be tested for longevity on a daily basis.
While exercising, I would have the Soundbuds connected to my Apple Watch to listen to some great, upbeat music as well as keep track of my progress or distance and pace while running. My normal run time is between 30 minutes to an hour and I don't hold back. These will get pretty sweaty. Will they hold up to the inner ear sweat/head sweat? I'm not sure yet? I'll give you $1 to let me find out...
I love great sounding audio and music is something that keeps me going through out the day. My plan is simple, but will put these little babies through the ringer by testing the duration of the battery, audio quality, distance between the Soundbuds Slim+ and device connected, and how they hold up during outdoor actives, sweat, and workouts.
Thanks, @AnkerOfficial, for the opportunity and chance!