What needs to be clarified
Check runtime in comparable modes, assess codec, processing and noise-cancelling effects, and establish grounds for battery diagnosis without directly comparing incompatible manufacturer claims.
Materials to prepare
- Headphones, supplied charging equipment and marking photographs
- Model instructions stating the runtime claim’s conditions
- App, audio source, connection mode and discharge records
What to compare
Record firmware, codec, volume, processing and full-charge completion according to instructions. Repeat playback of the same material, timing the specified shutdown. Change only the agreed parameter in a comparison cycle; account for calls and recharging separately. Displayed percentage is an indication, not a measurement of actual runtime.
Possible outcome of the analysis
A runtime record by mode and conditions table may assess repeatable shortening and identify further checks of charging, battery or software control.
Limits of the conclusions
One cycle cannot establish remaining battery capacity. Case endurance is not headphone runtime; matching a mode does not guarantee the advertised maximum under every condition.