Xiaomi, alongside the Redmi Note 11T series and Xiaomi Band 7, also launched the Redmi Buds 4 and Redmi Buds 4 Pro. Both earbuds offer IP54 ratings and "active noise reduction", with the Redmi Buds 4 starting at the equivalent of US$30.
https://www.notebookcheck.net/Redmi-Buds-4-and-Redmi-Buds-4-Pro-launched-with-IP54-ratings-and-affordable-prices.621964.0.html