MyBDJ 2.7" Vehicle Car DVR Camera Video Recorder Dash Cam G-Sensor GPS Dual Len Camera Feature: Dual cameras, bringing convenience for you to take video at front and back at the same time. Newly added GPS module can record the whole driving track. Using random specialized software, you can see the video at computer, at the same time connect google map Built-in gravity sensor G-sensor can record the gravity sensing information. Using random specialized software, you can see the video at computer Loop recording per 119MB and cover the earlier segment automatically when the TF card is full, and because of its own proprietary software Built-in lithium battery with charging and meanwhile recording function.