Onekey recording and saving: Easy to operate. Push to start recording, push again to save, and recordings are saved before poweroff for data security. Automatic save when power off: When the system detects low battery, it saves the current file automatically and then shuts down to prevent any data loss. Local playback and recording: It can be used as both a voice recorder and a keychain. You can listen to music during spare time and take it with you on business trips. Up to 25 hours of uninterrupted recording: Builtin energy polymer lithium battery and a smart energysaving system, combined with a compact size, enable longterm recording without frequent recharging. Key attributes Function: Onekey operation for recording and saving; automatic save on low power; local playback for music; long recording time. Size: Compact, portable form factor suitable for easy transport and everyday use. Battery and performance: Builtin energy polymer lithium battery with intelligent energysaving features for extended recording sessions. Local playback: Supports music playback in addition to voice recording for versatile use during travel or breaks. Use scenarios Business travel: Capture meetings discreetly with reliable autosave to prevent data loss during power fluctuations. Education or interviews: Record lectures or interviews for later review, then listen back on the go. Daily commuting or breaks: Use as a compact music player during downtime while still keeping a discrete recording option available.