Xiaomi introduced its first truly wireless earbuds a few months ago and now the company is following them up with a new model that costs half as much - just CNY 99 ($15/€13). That's an affordable price for any Bluetooth headset, never mind a truly wireless one. Technically, these are the Redmi AirDots while the first model was under the Xiaomi brand. Still, it seems that you're getting the same features (other than the color - black). The buds connect over Bluetooth 5.0 and feature 7.2mm drivers. There's a built-in DSP wtihi "environment noise reduction". It's not clear if this is true...