Onekey recording and saving Simple operation: press to start recording, press again to save; the recording is saved before poweroff for data integrity. 2.25 hours of uninterrupted recording Longterm use in a compact form: builtin energy polymer lithium battery paired with an intelligent energysaving system enables extended recording in a small device. Autosave on poweroff Low battery detection triggers automatic saving of the current file and a clean shutdown to prevent data loss. Local playback and portability Not only a voice recorder and keychain: local playback allows listening to recordings or music during spare time and on business trips. Key attributes Function: voice recording with onekey save, automatic poweroff save, local playback. Size: compact, pocketsized design for easy carrying as a keychain. Material and power: builtin polymer lithium battery with intelligent energysaving system. Performance: reliable data protection on poweroff, convenient onekey operation, flexible playback options. 23 practical use scenarios In meetings or lectures: quickly capture notes or interviews with a single press, ensure data is saved when you end the session. While traveling: carry as a keychain recorder; autosave protects your recordings during long trips. Breaks and downtime: use local playback to listen to recordings or music for relaxation or focused listening between tasks.