1) 4 CH black box manufacturer 2) H.264 compression 3) CE FCC RoHS approved 4) Built-in GPS module 5) ... FRAME RATE100fps(PAL), 120fps(NTSC)VIDEO BITRATE1.98Mbps ~ 4.5Mbps, 4 level video qualityAUDIOAUDIO INPUT4 channelsAUDIO INPUT FORMAT20KΩ, RCAAUDIO ... , p-pAUDIO COMPRESSIONG.711STORAGESTORAGE1.8 inch Hard drive, SD card, external USB deviceFILE FORMATAVIINTERFACESENSORS1 speed sensor, 1 ir port, ...