I've had them for less than a month. On the right side, the volume suddenly became extremely low.
To the point that when I wear both, it seems like I can't hear anything from the right one.
I've used them 5-6 times at most

Excellent sound for their price, battery that you forget when you last charged, truly sweat-resistant and they fit very well in the ears during exercise. I recommend them.

Very nice headphones, for the money they are just right.
I have noticed that after a (relatively) long period of time, the sound gets distorted. If you download the Soundcore app, you can adjust them from there according to your preferences.

The battery life is more than enough

Value for money with very good sound quality. I don't know how long they will last but it's worth getting them for the bass and the clear speech they offer.

In general, it is good and fits well in your ear without causing discomfort. I use it for conversations, and sometimes they can't hear me while I can hear them. During the day, it disconnects once. It has good sound quality, but with moderate talking, the battery needs charging in its base after 6 hours. For its price, it is quite a good choice.

Of course, I lost one of the 2 AirPods 4, another 100 euros is too much and I decided to try the soundcore k20i, one of the few semi-ear from a relatively well-known company.
The silicone ear tips bother me so semi-ear without ear tips is the only way.

Negatives
-Almost in nothing is it top like the AirPods 4, of course at 1/5 of the price I didn't have high expectations. However, in everything it is very decent and it has good bass, good mids, and in calls it is ok, good battery life, etc.

Positives
-Amazing app from the parent company soundcore with customizable EQ
That works wonders and lets you adjust the touch gestures as well.

A decent purchase at an amazing price, especially in the semi-ear category where there are practically only 4-5 models

I wear them while running, they fit perfectly, the sound is okay, nothing crazy, but not bad either! It has nice bass! They have crazy battery life, I guess those who know Anker understand! I would like a bit more volume, but they do their job! For the €16 I paid, you could call it a steal!

I bought it after a lot of searching through reviews. It is indeed worth it, at least in terms of sound quality. The battery life is quite good. Its durability will be proven over time, but again we are talking about a product that costs 20 euros.

music: crispy treble, non-existent bass 2/10
call sound: satisfactory 8/10
microphone: good 9/10
battery: 4-5 hours 10/10
durability: in two weeks the right one broke, in four weeks the left one too 1/10

so I paid to have headphones with terrible music for 2 weeks, I got screwed basically.

I switched to awei t28 pro and found my peace.

They have grate sound BUT, 4TH DAY OF USE the right earphone is gone not playing the same anymore so guys u get what u pay for

They fit very well, have endless battery life (of course I don't use them for many hours), but I've forgotten what charging means since I got them! I replaced my AirPods 3 with these, which are less sturdy than the AirPods, but lighter, which I prefer. Also, they connect instantly with every device, whereas the AirPods were a hassle. If I wanted something more, it would be for them to have higher volume when listening to music, but for calls they are perfect!!

Don't buy them under any circumstances, a month ago they worked fine, after a month I put them at max volume and they give 50-60 db when a headphone is about 110, but I have to say that this brand has saved me, I have the soundcore q20 i, the soundcore boom 2 and they have perfect bass, many features and they last, but these particular ones don't buy them, get others from soundcore

I am very satisfied with the purchase. They have very good sound and the battery lasts a long time! My callers hear me clearly and without interference even if I move away from my phone.

compared to the 60€ I had spent once, only one earbud worked and they didn't even last two hours, these are very good. soundcore guarantee. I also have a speaker of the same brand for several years now, everything flawless so far. music and calls sound great. for under 20€ it's super value for money

They are very good and value for money. The sound is fine for music and during calls I can be heard okay. Nice and comfortable for hours. For the price, that is. I got the same ones for my mom in purple <3
update: after three months one of them doesn't produce much sound or none at all. The exact same thing happened with the other pair after a while

After about a year and periodic use, one of the earphones broke

After a little use that I gave them, I can say that they are very good for their price! They fit very well in the ear. They have very decent sound. The microphone has good noise reduction; I've been told that they hear me very well on calls, which is very important. The case charges with usb-c, and in 10 minutes of charging, you get about +2 hours on the earbuds!

Anker never disappoints! even in products like this that are affordable, the quality is high level. Small discreet with good sound!

The best hands-free headphones I have purchased!! They are very convenient and easy to use. Their price is also very reasonable.

Although I was afraid that they wouldn't fit me well, they are very comfortable in the ear and do not tire. They deliver very good sound and clear conversations. The Soundcore app is very well structured and offers many options for the headphones.

In the style of AirPods, of course, they are not AirPod Pros in terms of build/performance, but for ~€20 that I acquired them, I consider them an amazing purchase. Easy, quick connection with Bluetooth. They fit nicely in the ear and are super lightweight. Clear sound and they can hear you clearly on calls. Good response to touch controls. Easy adjustment and optimization of sound in the Soundcore app (EQ settings). The battery life is also impressive. For their price, they are worth it.