... 2. Voice alert is adjustable on 4 levels of volume: loud, medium, quiet and mute.3. City/Highway mode switch to eliminate ... 2.4GHZ. 2. Photosensitive components 1/4-inch color, CMOS, 3. Pixel 628X582, resolution of 380TV lines 4. The illumination 3LUX (infrared light at ... viewPhoto Format: JPG, GIF, BMP, PNGE-bookText Format: TXT,Game car rear mirror with DVR ,4.3'inch GPS function,rear mirror GPS DVR