4CH sd card car dvr for bus, truck, taxi

1) 4 channel video and audio recording
2) Video format:1D1(25fps) + 3CIF(25fps)
3) Alarm input: 4 alarm input, No alarm below 4V, high level alarm above 4V.
4) Alarm output: 1 alarm output, high level 12V output.
5) Compression: H.264， 75fps D1/s
6) Data Storage:suport 64GB SD Card.
7)Motion detection / timer switch / alarm recording
8) Suport USB port
9) Power: DC8—36V
10)Body Weight:0.45Kg.
11)Product Size: 135mm x 125mm x 30mm
12)Language: Chinese/English