UPGRADED 4K ULTRA CLEAR RECORDING: E4 car dashcam records 4K (3840×2160P) front + 1080P rear. With 160° front and 150° rear wide angles cameras, it monitors the front and back of the vehicle simultaneously for maximum road coverageplus enhanced night vision for sharp footage day and night 3X LIFESPAN DASH CAM: Our updated NO-BATTERY design dash cam eliminates explosive lithium batteries, it withstands -4°F to 150°F extreme temperatures while delivering 24/7 reliability. No battery swelling or sudden failures. Just continuous protection that outlasts standard dash cams by 200% EMERGENCY VIDEO PROTECTION: With built-in G-sensor, the car camera automatically records a 20-second emergency video during emergency braking and collision, and locks the video prevent overwriting by LOOP RECORDING. Connect the Hardwire Kit to start the 24-hour parking monitoring and activate collision detection even when engine's off(Hardwire Kit NOT Included) 4X SPEED FASTER 5G WiFi: No need to