Network bands:
4G FDD-LTE: B1,B3,B5,B7,B8,B20,B28 
4G TDD-LTE: B38,B40,B41

Remote Monitor Function
-4G live streaming on phone
-Two ways communication
-Video capture remotely
-Photo capture remotely
-Remote restart dashcam
-Remote set parameter
-Remote format tf card
-GPS trace check remotely
-Remoter playback video in Micro SD card

Other functions
-Wifi function
-GPS tracking(NOT navigation)
-Support BSD (blind spot detection)
-Support adas function (lane departure warning)
-G-sensor
-Loop record
-Park monitor

4 Channels Video Record
With FHD 2K front camera with 140°wide viewing angle, 
it could capture front road and license plate clearly; 

Built-in WIFI and Work on 4G LTE Data
Support two-way wifi, support LiveView, capture video,live video & photo, 
Mobile APP "Cloudspirit"available for iOS and Android.

24Hrs Parking Monitor
You could receive notifications on your phone when collision events occur, to support 24 hours monitor your car.

Two-Way Voice Talk
Press one  button on car assist application, talk with driver in the car from your smartphone anywhere.

G-Sensor
Built-in G-Sensor to automatically record footage in the instance of a damaging accident.

Advanced Driver Assistance Systems (ADAS)
Real - Time Surroundings Monitoring for Collision Prevention.

Description
Model no.: M77-4G( front+ rear+left+right cam)
Screen size: 3 inch touch screen
Display resolution: 640x360p
Main chipset: SA230D  Arm Cortex-A7 CPU+RISC-V CPU
4G module: Quectel EG800AK-EU
Internal storage: RAM 128MB + ROM 128MB
Operation system: linux
GPS module: built into the dashcam

Front camera image sensor: GC4653  6G len，150 degree view angle
Left camera in dashcam: GC2053  2G+2P Len, 120 degree view angle
Right camera in dashcam: GC2053  2G+2P Len, 120 degree view angle
Rear camera: GC2053  4G+2P Len, 130 degree view angle

Video quality: 
Front camera: 2560x1440@30fps
Left camera: 1920x1080p@30fps
Right camera: 1920x1080p@30fps
Rear camera: 1920x1080p@30fps

Video format: ts h.264
Monitor app: Cloud spirit
Max tf card: 256g with class 10 or above (Not included)
Audio record: built into microphone, built into loudspeaker
Power input: fit 12-24v with hardware (type c port)
Working temperature: -20℃～+70℃
Storage temperature    : -30℃～+80℃

What's in box?
1 x M77 Dash Cam
1 x Rear Camera
1 x Rear Cable(5m)
1 x Hardkit Power Cable(Power Line)
1 x 64GB Micro SD Card