Great Asia 4 channels WD1 Mobile DVR with WIFI 3G 4G & GPS

Description

OS:Linux 3.0.8Control Mode:Easy Check, network, CP4, mouse (3G/4G/WIFI) Input:4 channels WD1+1 channel 720POutput:1 channel Total Resource:(4x25)FPS WD1 @ PAL / (4x30)FPS WD1 @ NTSC +30FPS 720PVideo Signal Standard:Electrical level: 1Vpp Impedance: 75Ω NTSC/PAL Optional Audio Input:5channels (1 channel IPC audio input) Audio Output:1channel Audio Signal Standard:Electrical level: 2Vpp Input impedance: 4.7kΩDisplay Split:1/4/9 OSD:GPS information, alarm, vehicle No., speed, date/time Operation Interface:Semi-transparent GUI Video/Audio Compression Video Audio: ADPCM, G.711A G.711U Digital:720P(1280X720) Recording Mode:Boot up/Manual/Schedule/Alarm Pre-recording:0-60minutes Post-recording:0-30 minutes Playback Channel:1 channel by local playbackSearch Mode:Date/time, channel, event