R300 Synchronous Recording Vehicle-mounted DVR Camcorder With Double Cameras-black100% original Using random specialized software, you can see the video at computer At the same time read the gravity sensing data to trace accident and?abnormal circumstance occurred in the running process Features: 1) 2. 7 inch TFT LCD screen 2) Dual lens,Surveillance the outside and inside together 3) Front lens? Ultra wide angle of 140 degrees 4) Back lens Imported from Singapore in stock lot In perfect working condition 3 days Checking warranty