Specification: Color:Black Size:45*17*6（mm） Shell material: Zinc alloy Hardware Interface：USB Format：MP3 Audio Number of Batteries：1 Lithium ion batteries required. (included) Memory Storage Capacity：32 GB Item Weight:7.6 Grams Battery Life:13 Hours Description: 1. One-Key recording / saving,recorder host playback with earphone. 8G/16G/32GB large capacity for your chossing, store 375 Hours of recording files. 2.With our included Micro-USB/Micro-USB adapter, view/delete files directly on for Android Phone/ MAC/Windows Computer (Not for compatible with iPhone). 3. Automatic Save / Data Protection,detect the low battery power and save automatically.Time Stamp,recording files are named according to date and time for easy searching. 4. DSP ten-core digital intelligent noise reduction, filter noise automatically to get clearer sound. 5.Voice Activated Function,factory defaults to close it ( VOR = 0) ,to protect important recording without missing. 6. Ideal for memos, lectures, meetings, interviews and more. It is a wonderful gift for teachers, students, lawyers, writers, etc. Packing list: Voice recorder*1 Headphone*1 Charging cable*1 Manual *1 Mini voice recorder is made of high-quality titanium alloy, with high drop resistance and durability 30 Hours Battery Time & 32GB Large Capacity One-Key Recording & Voice Activated Recorder DSP Intelligent Noise Reduction & HD Stereo