Features:1. Built-in time chip, with automatic time synchronization function, can be used as the basis for time, easy to browse to find documents2. Built-in high-energy lithium polymer batteries to meet your recording needs3. Power failure auto-save, when the system detects insufficient power, the recorder will automatically save the file in advance and then automatically shut down to ensure that the recording data is not lost4. Mini and compact, easy to carry around5. OTG connection to the phone, convenient transmission6. Strong magnetic adsorption, not easy to loseParameters:1. Shell material: CNC aluminum alloy2. Battery capacity: 120mAh3. Recording mode: boot recording, shutdown save4. Recording format: WAV5. Playback format: MP3 or WMA or WAV6. Sampling rate: 48kHz7. Recording bit rate: 192kbps8. Charging time: about 1 hour recording time: about 18 hours playback time: about 12 hours9. Memory time: 4GB: up to 48 hours 8GB: up to 96 hours 16GB: up to 192 hours 32GB: up to 384 hours10. Size: 29 x 29 x 7.6mm11. Weight: about 9.7g