The House of Marley Positive Vibration XL ANC headphones have a battery life of 25 hours, 12 minutes with ANC activated and 32 hours with ANC turned off. The headphones feature an automatic shut-off function when not in use and can be manually powered off. Charging time is approximately 2 hours for a full charge. These specifications make the headphones suitable for extended use and reduce the need for frequent charging.