3.39" IPS Screen Front Video Resolution: 3840×1440 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: F2.0 Video/Photo Compression Format: TS code stream /H.265 Built-in Microphone 128G MAX Micro SD Class 10 Operating temperature: -20℃~70℃ Working voltage: 5V-2A charger Support multiple languages Size: 91×42×22 mm Weight: 102g