Features: 1.Dual lens with high definition， the front lens can rotate frontwards and backwards for 270 degree and the back super-periscopic lens can rotate for 270 degree which have a high resolution， both of the lens are combined perfectly， which facilitates the video shooting from multi-angles in various occasion to get a video with high resolution.2 . 1/4 inch internal photosensitive elements with low noise and high picture quality， which can capture ultra-clear pictures in relatively dark occasion.3 . Internal microphone / speaker.4 . Support TF card with high capacity5 . Delay starting function， which can prevent it from damage caused by pulse current occurred at the moment of vehicle starting.6. GPS scanning and positioning， travelling track restoring， which makes everything is under control.7. Infrared photosensitive8. Gravity Sensor9. Video encryption protects user's privacy by setting password.10 . Adjust the position of the lens: its front / back lens can be rotated for 270 degree to the front or back， so as to cooperate with the fixing position of the Tachograph with better effect to reach a better video shooting effect. Specification: LCD Screen Size: 2.7 "High definition screenLens: 140 degree front lens/120 degree back lensResolution: 640 * 480p / 1280 * 480p CMOS SensorLanguage Options: English / Chinese / Japanese / RussianVideo Format: AVITF Memory Card Slot: Micro TF (Support Max 32gb， TF card not included in)Internal Microphone / Speaker5V 500MA Vehicle Power DC InputBuilt-in lithium batterySystem Requirements: Above Windows 2000/XP/Vista/Windows 7 Package included: 1 x Dual lens camera recorder1 x Bracket1 x GPS1 x car charger1 x manual