TF Card Expansion: Expandable to 512GB. This feature provides additional local storage for media and files, reducing the need to rely on cloud storage. Battery Capacity: 260mAh. A solid capacity that supports reliable operation for a portable device and helps balance size and performance. Lithium Battery: 25 hours of continuous use. Delivers up to 25 hours of continuous operation on a single charge for longer sessions. Working Temperature: 10 to 40 C. Operates across a wide temperature range, suitable for use in varying environments. Use scenarios Travel and media storage: Expand storage up to 512GB to carry photos, videos, and documents without frequent transfers or cloud backups. Fieldwork or remote use: The device supports up to 25 hours of continuous use, helping you work longer between charges. Varied climates and environments: With a wide operating temperature range, the device remains functional in both cold and warm conditions.