"A massive battery and tiny price tag are weighed down by suspect marketing claims."
The '90-Hour Battery Life' means you might only charge these once every few weeks. This is the main engineering accomplishment here, though it's likely quoted with noise cancelling disabled.
This is for someone who prioritizes extreme battery endurance above all else for a very low price. If you need headphones for long travel or study sessions and view ANC as a 'nice to have' bonus rather than a critical feature, the value proposition is here.
Anyone seeking genuine high-fidelity audio or effective, adaptive noise-cancellation should look elsewhere. The questionable specs sheet is a major red flag for buyers who value verified performance and technical accuracy over a low price.