1) 1.25 hours of uninterrupted recording Builtin energy polymer lithium battery with an intelligent energysaving system Small size designed for longterm recording without frequent recharging 2) Local playback and recording Functions as a voice recorder and a keychain You can listen to music in your spare time, useful on business trips 3) Onekey recording and saving Simple operation: press to start recording, press again to save Saves before poweroff to protect your recordings 4) Automatic save on power off When the system detects low battery, it automatically saves the file and shuts down Prevents data loss by safeguarding the recording Use scenarios On meetings or interviews: keep this compact device on your keychain to capture notes quickly and discreetly During travel or commuting: use it as a portable recorder and, when not recording, enjoy music playback for a relaxing break In field work or business trips: its small footprint fits in a pocket or bag, with automatic save ensuring your recordings are preserved even if power is low