11.88" IPS Screen Front Video Resolution: 3840×2160 Chip Specifications: SONY IMX335 Front Camera Angle: 121° Front Lens Aperture: F1.4 Rear Camera Video resolution: 1920×1080 Rear Camera Angle: 145° Rear Lens Aperture: F1.8 Video/Photo Compression Format: H.265 Built-in Microphone 256G MAX Micro SD Class 10 Operating temperature: -20℃~70℃ Working voltage: 12V charger,The main unit has a built-in wide voltage of 12V-36V Support multiple languages Size: 290×72×17 mm Weight: 381g