Device model BE-A16C family of operating systems embedded RTOS operating system video compression standard H.264 Preview resolution PAL: 704 x 576 (4CIF); NTSC: 704 x 480 (4CIF) resolution playback 4CIF/DCIF/2CIF/CIF / QCIF video input 1/4 Road (PAL / NTSC automatic identification; level: 1.0Vp-p, impedance: 75Ω) Video Output 1 channel (PAL / NTSC optional; Level: 1.0Vp-p, impedance: 75Ω) Video Frame Rate PAL: 1/16 to 25 frames / sec; NTSC: 1/16 to 30 frames / second video compression rate 32K ~ 2M adjustable, custom ceiling 8M (unit: bps) Audio compression standard OggVorbis audio input 1/2 Road (level: 2.0 ~ 2.4Vp-p, impedance: 1000Ω) audio output 1 channel (level: 2.0 ~ 2.4Vp-p, impedance: 600Ω) stream types can choose a single video stream or composite 3-way flow alarm input level of the signal input alarm output 1-way switch or dry contact signal output wireless network transmission module built-SMA antenna connector GPS positioning built-in high sensitivity GPS module, SMA antenna interface data storage SD card storage support maximum capacity supports a maximum 32GB / hard disk storage capacity of 500G data backup SD card backup, USB backup communications interface LAN, USB interface of each a delayed shutdown turn off the vehicle in delay 5min ~ 6h after shutdown power input DC +6 ~ +36 V power output DC in +12 V/2A, +5 V/2A (USB port output) device power consumption 5W Operating Temperature -10 ℃ ~ +55 ℃ Operating humidity 10% to 95% Product Dimensions 155mm (W) x 45mm (H) x 105mm (D) Product weight about 1Kg