R300 Dual Camera Car Vehicle DVR Dash HD 2.7" Screen GPS G-Sensor Two Lens 2.7" 16:9 High Definition LCD Dual Lens Video: can be connected to two CMOS Sensor, an application can monitor the vehicle dynamics, a monitor inside the vehicle Built-in 1/4 inch low-noise and high-quality photographic element can capture ultra clear picture in a dark place Built-in lithium battery with charging and meanwhile recording function GPS scanning and positioning