Key benefits Automatically names recording files by date for easy organization and fast retrieval. Detects low battery and automatically saves recordings before power off to prevent data loss. Realtime monitoring with a hearing aid function for immediate listening support. Versatile functionality: acts as a voice recorder, supports MP3 format, and can be used as a USB drive. Simple operation with onekey recording and a separate onekey save for quick audio capture. Durable onepiece shell with strong antidrop protection for reliable everyday use. Features and capabilities Timestamp based automatic file naming to keep recordings organized by date. Low battery detection triggers automatic saving of audio before shutdown. Realtime monitoring during recording to ensure you capture exactly what you need. Hearing aid function provides added listening support during use. Multifunction device: voice recorder, MP3 capability, and USB drive functionality. Onekey to start recording and a separate onekey to save audio quickly. Onepiece shell design delivers solid durability and enhanced drop resistance. Use scenarios Business meetings and interviews: automatically organized files and quick save ensure important moments are preserved without manual naming. Lectures and fieldwork: realtime monitoring and hearing aid function support clear listening in dynamic environments. notes and data transfer: use as a USB drive to store and move files quickly and securely. Design and build Onepiece shell for a compact, sturdy form factor with strong antidrop protection. Intuitive controls focused on simple, reliable operation. Built to handle daily use in various environments while preserving recording integrity.