Digital Audio Recorder - Universal - Portable Audio Recorder, Digital Voice Activated, Mini USB Pen, 32GB MP3 Player, Recording Lectures, Lectures Universal Highlights Portable Audio Recorder, Digital Voice Activated, Mini USB Pen, 32GB MP3 Player Go, Recording Conferences, Conferences Portable Digital Voice Audio Recorder Mini USB Mini USB Pen 32GB Recording MP3 Player for Conferences Meetings | Digital voice recorder Features: Black color Material: ABS Recording distance: 5m Sampling rate: 48kHz Battery: eco-friendly lithium polymer cell, 3.7V Battery capacity: 3000mAh Charging time: approx. 12 hours (full charge will show blue light) Recording time: 500HR continuous recording Memory capacity: 32GB Recording bit rate: 192kbps Recording format: WAV Playing model: MP3/WMA/ WAV Frequency Response: 20Hz-20kHz Supported OS: Windows98/Me/2K/XP/Win7/8/10/Linux6.2/Mac OS 10 Item Size: 7.0 x 2.1 x 2.8cm/ 2.8 x 0.8 x 1.1in Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.