Video format:AVI Video encoding: M-JPEG Video resolution:720*480 VGA video frame rate 30fps+-1fps Player software:Operating system comes with or mainstream video player software Image scale:4:3 Support system windows me/2000/xp/2003/vista;Mac os 10.4 Charging voltage:DC-5V Easy operation with LED indicator Interface type:mini 5pin USB Support up to 16GB microSD / TF card (card not include) Battery types:High capacity polymer lithium electricity Package content: 1 x Mini DVR 1 x USB cable 1 x User manual Note: 1. Please use high quality high speed memory card (above Class 6), low speed memory card or inferior memory card would cause incapable of video recording. 2. When product out factory, the battery only has a small amount of test power, the natural discharge during the transportation process may cause low battery, when you use for the first time, please make sure the product fully charged with car charger.