Alright. I bought these about a month and a half ago and wanted to write a quality review, so I waited. To rate these earbuds, I'm going to bullet point each aspect.1. Sound quality: The sound quality is pretty good. After being dropped 3x, the quality is still good. For piano music, the background can get a little tinny when playing high notes. This may have to do with the volume, but the quality is compatible with a product of this price. You don't have to crank up the volume to hear well as the quality is good on both ends of the spectrum.2. Waterproof Features: I wore them in the shower the first time I purchased them. Music sounds strange when wet, so I did not wear them more than twice in the shower. They also get slick in the shower and tend to fall out if you pull it with hair (I have long hair.). The sound was good and they did not malfunction after wearing them in the shower. They dried off fairly easily. Sometimes the water hitting the earbuds can pause or skip songs if directly beating on the earbud.3. Sound proof: They do not cut out background noise like Bose headphones would do, but I wore these while on a tractor and they performed well. I could hear the music and make out the notes/voices while on a noisy tractor. You can still hear background noises, but they are minimized. I have not used these for running as I do not enjoy running, but they work well for other noisy activities. Depending on the volume you set them on, you can/cannot hear the noise of your footfall.4. Phone features: For phone calls, they did NOT do well while on a tractor. Bare in mind that I was on a tractor and the earbuds were picking up on ALL the noise of the tractor. I had to shout. Other than that, using phone connectivity while walking/driving works well. They were easy to use and I had no issues with the sound quality. Phone calls in the shower work ok. There is background noise that makes it harder to hear.5. Bluetooth connection: I have connected them to my laptop and my phone. No issues whatsoever. They connect well and you can personalize how you want them to sound. If you want the sound coming out of both ears or just one, you can adjust it on your phone/laptop. I had to turn off my phone Bluetooth to connect to my computer, as my phone was the primary.6. Single vs. Double: I have used them once as a single earbud, but that drives me crazy. The sound quality was very good when I used just one earbud. As I stated before, you can adjust the sound to fade from side to side, or to be the same for both ears. I have not messed with that setting as I am happy the way it is now.7. Case: The case charges easily and comes with a cord (USB connection) for charging. I had a puck for charging my phone wirelessly and the earbuds charge on this as well. When you drop the case, the earbuds may come out. I dropped them on concrete (which explains why the earbuds came out), out of my car, and off various countertops. They still work just fine. The magnetic closure is fairly solid, however the hinge on the case is a little flimsy. Still going strong. The LED display can only be seen when putting the earbuds in the charger or moving the earbuds to see battery level. The case shines blue when charging or when the earbuds are just placed in it. The case is a little bulky and does not fit in a pocket well. However, you can stuff it in your pocket or put it in a bag.8. Charge retention: The earbuds and case hold charge well. I wore the earbuds on a tractor for 7ish hours (hay season) and in a car (5+ hours) and they did not die. I did not charge the case for a cross-country trip and they did not lose charge.9. Touch features: The easy of pausing and increasing/decreasing volume using the touch screen was beautiful. I thoroughly enjoyed the ease of skipping songs, pausing my music, or answering phone calls with a touch. When they are wet, the touch features don't work very well. If you wear them in the shower, beating water will pause/skip your music.10. Fit: These come with a set of various earbud tips. I changed mine out until I found the right fit. They are a little bulky when in your ear because they stick out. If you have long hair, be careful pulling your hair to one side or another as it will pull the earbud out. I have had issues in the past with pain associated with regular corded earbuds. These may get a little uncomfortable after about 2 hours of wear, but I have sensitive ears. A minor readjustment will take any discomfort away. They are a little heavy, but not horrible.Overall, I rate these a 4 star because they are good quality, waterproof, last, and are reasonably priced. If you want a pair of earbuds that work well and are not expensive, this is the pair for you. I would buy another pair. I recommend these earbuds because they are so reasonably priced for a good quality product. You get what you pay for and more.