QCY T1C are extremely cheap headphones from Xiaomi
Wholesale QCY T1C Wireless Binaural In-ear Earphones Waterproof Bluetooth 5.0 Headset with Charger Box from China | TVC-Mall.com
Levné bezdrátová sluchátka QCY | Alza.cz
Amazon.com: Bluetooth Wireless Earbuds, QCY T1C Earphones with Microphone for Android iPhone with Charging Case Waterproof Stereo in-Ear Headphones¡ : Electronics