I started running again recently and have been using wired buds, which has been annoying. I wanted some bluetooth buds, but didn't want to spend a lot of money on them since they were for running and bluetooth doesn't sound good enough to spend a lot of money on.
I needed something that wasn't going to fall out. I own a pair of the wired Gumy's and I know they stay in your ear. Even with the large control box hanging off your right ear, they still stay in fine while running. I recommend running the wire behind your head though. They give you small and medium rubber tips. The medium fit fine, but didn't seal properly to hear the full audio. Bass was lacking. Luckily I had some large tips from some other buds. I put those on and was able to get a great seal. Keep this in mind if your buy them, but may need different tips for them to sound their best.
Sound quality is decent. Don't expect much, but they have a full sound. The bass is bit overpowering. The highs and mids are about even. They get fairly loud. Loud enough that i don't use them on max volume. I'm not sure how durable they will be, but for $20, you can't expect to be rough with them. Range is 15-20 feet so you can use this for other tasks as well. The controls work well for play, pause, and volume. I haven't tested call quality.
I only had one issue. When i took them out of the box I expected them to have some charge, but they didn't. When I plugged them in the charging light didn't come on, so I thought they were DOA. I left them plugged in and tried to turn them on again and they powered up and have worked fine ever since. It was a little strange, but I am glad I let them charge before returning them. I recommend these for everything except serious audio listening.