"A battery that lasts for days, attached to mediocre headphones with fake specs."
The '100H Playtime' is achieved by using a large, inexpensive battery cell paired with power-efficient (but not high-performance) components. This means you will charge it infrequently, but the audio fidelity and noise cancellation will be at the absolute entry-level.
This is for a buyer whose sole priorities are a rock-bottom price and not having to recharge often. It's a plausible choice for casual podcast listening on long journeys or as a 'burner' set of headphones where loss or damage is a concern.
Anyone looking for effective noise cancellation for a commute or office should skip this. Likewise, listeners who care about balanced sound or are wary of products with intentionally misleading specs (like the non-existent 'Bluetooth 6.0') should look elsewhere.