On the positive side:
- They fit well and stay in the ears. However, I don't think they are suitable for exercise.
- They have good sound quality.
- They isolate noise.
- They pair quickly.
- They can function independently.
On the negative side:
- Serious battery issue. They discharge while sitting in the case. I have a second pair after replacing the first one. With the first pair, the right earbud would discharge very quickly after being fully charged.
With the second pair, the performance is completely inconsistent. One day the charge lasts, the next day if they stay in the case for 2-3 days, they are completely discharged. I have been left hanging several times due to this issue, so now I only use them as music earplugs at home.
- The microphones are very sensitive to ambient noise. Your voice sounds clear, as well as your neighbor's.
- The touch surface is very sensitive and not convenient for everyday use. I would prefer the version with a regular button.
- When they are in stereo mode, there is no indication of the battery level for each earbud.
- If you use them separately or if they lose pairing for some reason, you will need to reset them:
06Reset Earbuds
If the earbuds cannot connect properly, please carry out the following steps to reset: Remove the earbuds from the charging case, and make sure they are turned off. Press and hold the touch panel on both earbuds for about 15 seconds. After the indicator alternately blinks red and white three times for twice, then release the panel and place the earbuds back in the charging case. Delete the earbuds from the list of paired devices on your device, and then pair them with your device again.
(https://i01.appmifile.com/webfile/globalimg/Global_UG/Mi_Ecosystem/Mi_True_Wireless_Earbuds/en-GB_V1.pdf)
- The construction of the case is poor. The earbuds do not always fit properly, resulting in charging not starting, and there is no indication of the battery level of the case, so you don't know if you can rely on it.
Conclusion: A hastily made product, a real disappointment from Xiaomi, which has accustomed us to functional value-for-money products. At 50 euros, it is excessively expensive and overall, I do not recommend it.
Update [29-11-2020]: I had put them in a fully charged case last night. Today, at 12 noon, I went to use them. The left one is completely discharged and the right one is at 40%. Note that to make sure they would be charged today, I had shut them down, cleaned the charging contacts, fully charged the case, and unpaired them from my phone. Once again, they have proven to be completely unreliable. Since I have no desire to deal with the dealership and returns in the midst of the coronavirus, I will put them on eBay to get rid of them, of course describing the problems I have. Someone may be looking for spare parts...