Portable Recording Studio - Universal - Mini Tape Recorder Professional Digital Audio Small Tape Recorder USB MP3 Player Voice Activated VCR(Black) Highlights Universal Mini Tape Recorder Professional Digital Audio Small Tape Recorder USB MP3 Player Voice Activated VCR(Black) Recorder Voice Player Mini Digital Audio Recorder Professional Dictaphone MP3 Player USB Enabled Voice Recorder | Digital Voice Recorder For voice recorder and mini cameras: please charge once product close. Do not give up charging while the product is on. There is a chance of burning the motherboard. Description Color Black Display Size 0.49 inch Size: 58*24*12mm Display Type LCD SNR 90DB Frequency Response 20~20000Hz Capacity | Memory 4GB Recording Time 25 hours Charging Time 2 hours Formats audio MP3, WAV Additional Features Microphone, U Disk, Timestamp Language Chinese, Traditional Chinese, English, Greek, Turkish, Italian, German, etc. More than twenty languages