4G LTE cellular connectivity, 1080p video, GPS tracking, Cloud Server,
 
With two cameras (front and inward) recording video at 1080p, support for SD card with up to 256 GB capacity apiece, the WIT400P provides out crystal clear footage day or night for hours on end without needing to overlap old video. G-sensor is built into the device to automatically record and lock footage in the instance of a damaging accident. It is also well regarded for its resistance to high heat or extreme cold, so you won’t have to worry about frying your expensive new device on the windshield.
 
4G LTE 
 2 Way Speaker for real-time audio
Built-in dual cameras
Night Vision
Panic Button
Relay to power off vehicle 
1080P video recording
Live surveillance
GPS tracking
Vibration alarm is turned on after the vehicle stops the engine for 5 minutes
1920 x 1080 Full HD resolution at 30 fps with H.264 compression technology for more storage.
The inward camera provides a white-black color night vision.
Enjoy  GPS Tracking service at witfleet.com, where playback, geo-fence are available.
Ultra-wide 140-degree viewing angle captures more of the road around you. With G-Sensor, the device can locks data to memory, which is helpful in insurance claims.
 
In the event of a serious accident, collision or improper driving behavior, the video will be automatically transmitted to the cloud. With a 4G connection, you can get faster data speeds and larger network coverage, allowing you to respond or take action immediately. 
 
 
Panic Button
In the event of an accident or other emergency, pressing of the panic SOS helps the driver by calling a pre-set SOS number and flagging important video footage for review. The external SOS button can be installed within easy reach for quick activation, giving added piece of mind to all.
 
Powered by T-Mobile for Business 4G LTE natiowide cellular network 
 
https://www.jimilab.com/products/jc400p-aivision-cam.html