With a 10-minute charge, the earphones play music back continuously for 18 hours. With ANC turned on, the earphones provide 11 hours of continuous music playback. Test conditions: Music playback in AAC mode at 50% volume. Charging and battery tests are based on experiments conducted by Nothing (at a temperature of 25°C or 77°F). Actual battery life is influenced by factors such as volume, frequency, output source, environmental interference, product features and user habits. Actual experience will depend on individual usage.