?Note?:Some brands of mobile phones may not support playing video formats recorded by the recorder. If users encounter problems that cannot download and watch videos, please contact us in time and we can provide you with an upgrade program. ?100% Quality Assurance and One Year After Sales Service?:We are a company that design and develop this motorcycle camera ourselves, we could help you solve most of questions you would meet. All products of us are inspected before shipment and we can offer you a one-year warranty. ?G-Sensor?:Built-in G-Sensor will be activated when your motorcycle is hit,and dash cam will automatically enter emergency mode, video files are recorded in emergency mode are protected from being overwritten.Note:When TF card video file exceeds 10 KEY-XXX or GSR-XXX videos,system will delete the earliest one KEY/GSR files. ?Loop Recording?:Using loop recording, users will have the option to record videos at a frequency of 1/2/3/5 minutes.When SD card is full,the oldest video will be overwritten. ?Support WiFi?:Using WiFi, the smartphone could connect to camera , no phone data required and don't need pull out TF card, you can view real-time video, download, edit(clip & add music), and share the video to your phone. ?Dual HD 1080P?:Six-layer glass lens, 1080P Full HD, 130° wide angle camera, can capture every moment both front and back of your car clearly. ?Waterproof Metal Shell& Stable System?:Metal shell can provide better heat dissipation function than plastic, it also has stronger heat resistance and more stable system.