Auto save on power off: When the system detects low battery, the device saves the current recording automatically and then shuts down, preventing data loss. Long uninterrupted recording: Up to 25 hours of continuous recording with a builtin energy polymer lithium battery and an intelligent energy saving system, while maintaining a compact size for longterm use. Onekey recording and saving: Easy operation to start recording and save with a single press; ensures data is saved before power off. Local playback and music capability: Not only a voice recorder and keychain, but also allows music playback for downtime, making it convenient for travel and daily use. Compact, portable design: Small size suitable for keychain use and easy to carry, with reliable performance for daily recording and playback. Use scenarios Recording meetings or lectures: Onekey recording with auto save protects your notes and conversations, even if the battery runs low. Business travel and on the go: A portable device that records important ideas while commuting, and doubles as a music player for breaks. Quick memos and reminders: Simple onekey operation makes capturing quick notes effortless, with automatic saving to prevent loss.