H.264 Car DVR Recorder 1.vandal-proof, waterproof,dustproof 2.Auto restore,3G ... max 32GB SD card GPS 3G Network H.264 4CH Car DVR Recorder Support 32GB SD Card AK-6104G Main Features:Industrial grade ... option(CIF,HD1,D1).4),In the vedio, can add date,clock,car number,speed,brake,alarm signal in real time.5),Good ... after re-powered GPS 3G Network H.264 4CH Car DVR Recorder Support 32GB SD Card AK-6104G