Intelligent noise reduction and definition recording: Uses intelligent DSP and acoustic technology to greatly reduce noise and ambient sound in different environments, capturing real sound quality. Lossless HiFi playback: Supports WMA, MP3, WAV and other audio formats; connect headphones to enjoy music. Large capacity recorder: Wristband style with date and time display; built in 64 GB memory; supports up to 15 hours of continuous audio recording; compact wristband digital audio recorder. Variable speed playback and password protection: Adjustable playback speed and a repeat function to skip familiar parts or slow down playback for clarity; password protection system to secure privacy. Easy to use and discreet: Pocket sized digital recorder designed for easy operation; suitable for recording conversations and meetings discreetly; clear sound with quiet operation. Use scenarios: Ideal for business meetings and interviews; suitable for lectures and seminars for later review; useful for field notes and memos.