Belkin Soundform TW Noir Earbud Bluetooth Earphones - Black

They work really well. The sound is really pleasant (not too high-pitched like some headphones). They connect well to devices that use iOS (some Redmi headphones only do Android). Frankly, I recommend the Belkin brand. These headphones are excellent value for money.

They're not ergonomic, and if you wear them for more than 20 minutes they'll hurt your ear.