Main&nbsp;Function&nbsp;:Wireless recording remotely (100M) With wireless microphone match to machineSuper long time continuous recording (350 hours)Voice Activated Recording (VOR/VAR)FM radio:Frequency 87.0-108MHzMp3 playerOne button recording &amp; playing&middot;Four recording modes&nbsp;&nbsp;*LP: Long-time recording&nbsp;*SP: Standard recording&nbsp;*H-P: High quality recording&nbsp;*Listening while recordingTime settingAutomatic section-breakA-B repeatBuilt-in high power loudspeakerBuilt-in large capacity polymer batteryI&nbsp;ntelligent power control&nbsp;Specifications<table style="height:168px;"><tbody><tr style="height:21px;"><td style="width:188.688px;height:21px;">Size</td><td style="width:666.312px;height:21px;">110mm*35mm*13.5mm</td></tr><tr style="height:21px;"><td style="width:188.688px;height:21px;">Weight</td><td style="width:666.312px;height:21px;">57g</td></tr><tr style="height:21px;"><td style="width:188.688px;height:21px;">Power supply</td><td style="width:666.312px;height:21px;">polymer battery 3.7V &nbsp;1500mAh&nbsp;super long time continuous recording</td></tr><tr style="height:21px;"><td style="width:188.688px;height:21px;">Memory capacity</td><td style="width:666.312px;height:21px;">4GB-32GB</td></tr><tr style="height:21px;"><td style="width:188.688px;height:21px;">Recording bit rate</td><td style="width:666.312px;height:21px;">ADPCM; 32Kbps/128Kbps/192Kbps</td></tr><tr style="height:21px;"><td style="width:188.688px;height:21px;">4GB recording time</td><td style="width:666.312px;height:21px;">LP about 283 hours/SP about 70 hours/H-P about 47 hours</td></tr><tr style="height:21px;"><td style="width:188.688px;height:21px;">Music format</td><td style="width:666.312px;height:21px;">&nbsp;MP3/WMA</td></tr><tr style="height:21px;"><td style="width:188.688px;height:21px;">Support system</td><td style="width:666.312px;height:21px;">Windows2000/XP/Vista/7/8</td></tr></tbody></table>&nbsp;<img data-srcid="-" src="https://image.doba.com/dgd1-abqKyZRFmPDj/dvr-308a-100m-distance-digital-voice-recorder-long-time-voice-recorder-and-wireless-voice-recorder.jpg" alt="dropship DVR-308A 100M Distance Digital Voice Recorder Long Time Voice Recorder And Wireless Voice Recorder" /><img data-srcid="-" src="https://image.doba.com/dgd1-ZPDdytHKioVj/dvr-308a-100m-distance-digital-voice-recorder-long-time-voice-recorder-and-wireless-voice-recorder.jpg" alt="dropship DVR-308A 100M Distance Digital Voice Recorder Long Time Voice Recorder And Wireless Voice Recorder" /><img data-srcid="-" src="https://image.doba.com/dgd1-fLqtmTHnzPDU/dvr-308a-100m-distance-digital-voice-recorder-long-time-voice-recorder-and-wireless-voice-recorder.jpg" alt="dropship DVR-308A 100M Distance Digital Voice Recorder Long Time Voice Recorder And Wireless Voice Recorder" /><img data-srcid="-" src="https://image.doba.com/dgd1-fdbShaEhiPVw/dvr-308a-100m-distance-digital-voice-recorder-long-time-voice-recorder-and-wireless-voice-recorder.jpg" alt="dropship DVR-308A 100M Distance Digital Voice Recorder Long Time Voice Recorder And Wireless Voice Recorder" />