Portable Recording Studio - Universal - Metal Noise Reduction Digital Voice Recorder(Silver) Highlights Universal Metal Noise Reduction Digital Voice Recorder(Silver) A metal noise reduction digital voice recorder High-end voice recorder- speaker | Digital Voice Recorder 2.128x64 pixel LCD screen to show working status and battery capacity 3.This device works as a voice recorder and MP3 player. With an external microphone, you can also use it as a digital voice recorder to record lectures, meetings, interviews. 4.com with built-in rechargeable Li-ion battery and mini USB input port, which allows you to charge the device directly through your PC, USB port or your adapter with DC5V output. 5.A low drive power circuit design to achieve the long time recording, this audio recorder can continuously work up to 72 hours or more. 6. Reetretion function: Delete MP3 music files and voice files stored in the device. You can choose to delete a single file or all files. 7.Utilisb Connection allows you to upload and download the voice files. 8.With a built-in speaker, you can also enjoy music or recorded voice without earphone or speaker. 9. Automatic voltage and automatic voltage protection functions, it will power off automatically after 5 minutes time.