VIOFO A139 Pro 2CH Dash Cam, First 4K HDR Front and Rear Dashcam with The Newest Sony Starvis 2 IMX678 Sensor

First 4K HDR with Sony STARVIS 2 Sensor Dashcam Front: Sony STARVIS 2 Sensor 8MP 1/1.8 IMX678 Rear: Sony STARVIS Sensor 2MP IMX291 2 Channel 4K 3840x2160P 30fps + 1080P 30fps F1.6 Aperture 7 Elements Glass Lens 140°+ 170° Wide Viewing Angle Dual-Band Wi-Fi Built-in 2.4GHz & Upgraded 5GHz G-Sensor & Motion Detection Supported Voice Notification in Multiple Languages Supported User-friendly Installation with super slim coaxial cable and miniature connectors GPS Logger & CPL Filter (Included) Support External Microphone (Optional, Not Included) Bluetooth Emergency Remote (Optional, Not Included) Support MicroSD Card up to 512GB (Optional, Not Included)