M21 Business Collar Style Voice Recorder with 0.85-inch TFT Display 1. Business collar clip voice recorder with 3-in-1 multi-functions: HD recording, lossless music playback and e-book reading, equipped with HD color screen to display all parameters clearly. 2. Integrated back clip design, can be clipped on collars or pockets firmly to free your hands, no need to hold during meetings or interviews. 3. Intelligent voice-activated recording with 5-level adjustable pickup sensitivity; auto-record when sound detected and pause during silence to save storage and blank noise clips. 4. Up to 1536Kbps lossless PCM recording bit rate, fully restore human voice details, clear and undistorted audio for meetings and interviews. 5. Custom segmented recording storage, auto-split audio files every 306090120 mins for neat file classification and easy later retrieval. 6. Timed automatic recording, supports one-time, daily and weekday cycle schedules; the device starts recording automatically at preset time without manual operation. 7. Built-in stereo HIFI music player with surround sound, works as a portable MP3 for sports and leisure music enjoyment. 8. Handheld e-book reader, the color screen supports various genres of novels for reading during commutes and spare time. 9. Compact lightweight body with integrated physical control buttons, simple operation to switch recording, music and reading modes quickly. 10. Widely applicable to multiple scenarios: meeting minutes, business customer interviews, classroom lecture notes, speech recording, daily music and reading use. 11.Built-in 300mAh battery provides up to 55 hours of continuous recording on a full charge. 12. Screen: 0.85 inches TFT 13. Recording format: WAV 14. Playback formats: MP3, WMA, WAV 15. Material: ABS+PC 16. Dimensions: 55x26.5x21mm 17. Weight: 19.3g