Function: 

Built-in 1 Channel 1080P Camera.
External support for 3 Channels of Max 720P AHD Camera
H.264/H.265 Encoding
Support 1*TF card, Max 512GB
Support Wi-Fi Hotspot
Dual-Mode Position: GPS + Beidou
Support 2* IO alert input 2*RS232
Two-Way Voice Intercom between the Device and Platform
One-Touch SOS emergency call for help
Support DMS, ADAS, and BSD functions