Features:Main functions :&middot;One key record; one key save&middot; voice activated recording; save the internal memory&middot; Anti-counterfeit&nbsp;&middot; With built-in polymer battery; continuous recording 40 hours after a fully charging.&middot; Recording while charging; charging the recorder by PC with the step removing the U disk; then can make the Uninterrupted recording .&middot; Time-stamp; file named according to accurate time; convenient to check and manage the recording files.&nbsp;&nbsp;Technical parameter :Size : 32mm*60mm &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Weight : 13gPower Supply : Polymer Battery 3.7V 160mAhRecording Format :&nbsp;WAV; 192KbpsRecording Time :&nbsp;4GB : about 47 hours8GB : about 94 hours16GB : about 188 hoursSupport System : Windows2000/XP/7/8/Android&nbsp;Package Contents&nbsp;&nbsp;&middot; Digital Voice Recorder&nbsp; &middot; User Manual - English&nbsp;<img data-srcid="-" src="https://image.doba.com/dgd1-azbhyfHmkovG/wr29-16gb-usb-20-flash-memory-192kbps-audio-recording-necklace-pendant-voice-activated-vox-covert-voice-recorder.jpg" alt="dropship WR29 16GB USB 2.0 Flash Memory 192Kbps Audio Recording Necklace Pendant Voice Activated VOX Covert Voice Recorder" /><img data-srcid="-" src="https://image.doba.com/dgd1-TIDZytGLOPbH/wr29-16gb-usb-20-flash-memory-192kbps-audio-recording-necklace-pendant-voice-activated-vox-covert-voice-recorder.jpg" alt="dropship WR29 16GB USB 2.0 Flash Memory 192Kbps Audio Recording Necklace Pendant Voice Activated VOX Covert Voice Recorder" /><img data-srcid="-" src="https://image.doba.com/dgd1-TbvWifEikcDO/wr29-16gb-usb-20-flash-memory-192kbps-audio-recording-necklace-pendant-voice-activated-vox-covert-voice-recorder.jpg" alt="dropship WR29 16GB USB 2.0 Flash Memory 192Kbps Audio Recording Necklace Pendant Voice Activated VOX Covert Voice Recorder" /><img data-srcid="-" src="https://image.doba.com/dgd1-aFvbhTROuPVk/wr29-16gb-usb-20-flash-memory-192kbps-audio-recording-necklace-pendant-voice-activated-vox-covert-voice-recorder.jpg" alt="dropship WR29 16GB USB 2.0 Flash Memory 192Kbps Audio Recording Necklace Pendant Voice Activated VOX Covert Voice Recorder" /><img data-srcid="-" src="https://image.doba.com/dgd1-TYbhmfHGOcDM/wr29-16gb-usb-20-flash-memory-192kbps-audio-recording-necklace-pendant-voice-activated-vox-covert-voice-recorder.jpg" alt="dropship WR29 16GB USB 2.0 Flash Memory 192Kbps Audio Recording Necklace Pendant Voice Activated VOX Covert Voice Recorder" /><img data-srcid="-" src="https://image.doba.com/dgd1-ZEvyzaGpuYbM/wr29-16gb-usb-20-flash-memory-192kbps-audio-recording-necklace-pendant-voice-activated-vox-covert-voice-recorder.jpg" alt="dropship WR29 16GB USB 2.0 Flash Memory 192Kbps Audio Recording Necklace Pendant Voice Activated VOX Covert Voice Recorder" />