... 64bits capture High-quality video and audio file mini 1CH USB DVR box cctv dvr support window ... -quality video and audio fileHot keywords:USB DVR,mini 1CH USB DVR window 7 64bits,USB DVR, ... for 4 channels,usb dvr box,dvr, cctv dvr,mini dvr, pen recorder,video recorder,easycap3104,gum recorder, ... and audio file.CharacteristicSize is like USB flash, AV/SV video and audio collect, take it very easily; ...