I've been close to buying these a few times but always concentrated on the few negative reviews but today's deal made me pull the trigger. I'm not expecting big things from a pair of $52 earbuds but from all reports these punch above their weight
From their description
[Active Noise Reduction] - Combined with feedforward and feedback ANC technology , our wireless earbuds can effectively suppress noise in a larger range, it can reduce ambient noise by up to 30dB, better for you to focus on music, video or private conversation
[Transparent Mode] - This mode can amplify the surrounding sound, pick up the ambient sound through the microphones, you don’t need to take off the earphones to hear what is going on around you and communicate without obstacles
[Immersive Sound] - True Wireless earphones adopts 12mm large dynamic driver and advanced audio processing technology, it delivers incredibly high-quality sound and deep bass with rich details, two mics with each earbud can ensure crystal-clear calls
[10 Hours Duration] - For a single charge, the earbuds can be used for 10 hours, the compact charging case provides up to 30 hours battery life. With ANC function, the earbuds can offer 8 hours playtime. The Type-C charging port is more convenient with wide applicability
[One-step Pairing] - Simply open the charging case and turn on the Bluetooth to connect the earbuds. The Bluetooth V5.1 technology allows you to achieve true unlimited freedom. If you want to use in monaural mode, just put the other one into the charging case
Ah! bought these a while back full price - but very good ANC.
There is no app control of the buds however.