BR-MDVR04 4CH DVR with 4G & GPS &WIFI server platform with 4-channel AHD 1080P video input is now available. Hard disk + SD card Storage media. Anti-vibration 10G and anti-shock rating 100G. H.265 video compression code, high compression ratio, clear image. Built-in G-sensor and real vehicle driving behavior time monitoring can help drivers drive safely. The MDVR supports 4-channel real-time preview and storage. The DVR is usually installed in the car connecting with monitor and camera to work. The operating temperature -40~+80℃. It can work well in the extreme weather.