【Notice】If there is any problem with app download, you can contact us directly. You can use the app "Kakaok" or "roadcam" as well. 【provide Worry-Free 12 Months Service】We provide 12 months service and 30 days money back, if you have any questions regarding your product, please do not hesitate to contact us at customer care email, or drop us a message through the message chat box in Amazon, we will respond immediately. 【24 Hours Parking Monitor】Set the dash camera to Parking Monitor Mode after parking. In parking mode, both front and rear cameras will automatically recording once the front car camera detect shake or collision in front of the vehicle. To use 24Hours parking monitor function you need to hard wire the S1 dash cam to the car battery (Hardwire kit ASIN: B07Q29JZZY) or connect it to an external battery when you turn the engine off. 【Continuous Recording & Emergency Video Lock】Built-in G-sensor function that means dash cam will automatically lock the current video when it detects shake or collision, to prevent from overwritten by the loop recording and saved at an event folder (EMR) for viewing conveniently. And loop recording function helps you record the video continuously, no need to format the SD card frequently(Support 128GB Micro SD card, not included). 【Build with Wi-Fi & GPS】Use App to view and manage dash cam recordings instantly on your iOS and android devices. By using the app you can download and playback your recorded videos directly on your smart phone. GPS accurately records your driving track and speed, and can view your driving route with google maps via the App(for smartphone) or with our GPS Player (for PC).【Time can be obtained automatically after installing the GPS(only need to set the time zone)】. 【1440P Single Front & IPS Touch Screen】 With single front recording mode 2K at 30FPS (2560Px1440P), dual cameras recording mode 1080P + 1080P front and rear, combined Upgraded Super Night Vision Technology (Great processor NT96675 + Ultra-low light Sensor Sony IMX307+WDR) helps to get comparatively clearer videos and images from the recording even in low light condition. 3 inches IPS touch screen, easy to operate like a smart phone.