Quick overview from the supplier:
Scanner IRIScan Visualiser 7 Dyslexic
Image Sensor: 1/3.06” Sony CMOS camera 13MP, 4160 x 3120 pixels
Mode Scan: Color, Color (Enhanced), Grayscale, B/W(Document)
Camera: V4K Pro camera – A3 format 440 x 330mm / 17.32 x 12.99 inches
F/NO (Infinite): F2.2 ± 5%
G-Sensor: Built-in
AI Noise Cancellation Technology: Noise reduction & voice enhancement technology
Resolution Interpolated (SW): 4160 x 3120 pixels (13MP)
Video Output Resolution / FPS: 4K@30fps - 1080p@60fp
Visualizer Presenter mode 4:3 fps: MAX 30 fps
Visualizer Presenter mode 16:9 fps: MAX 60 fps
Scanning Width: 44 cm / 17.3 inch (at output 5696 x 4272)
Supported Text to Speech: offline 5 (UK/FR/DE/IT/ES)
Color Bit Depth: 24bit
Digital Zoom : 10X by Software
Picture Capture & Scan Per Second: 1 sec
Arm Structure: Highly Flexible Mechanical Arm
Lighting: White LED Lamp
Video Compression: MJPG, YUY2
Focus: Auto(AF-C / AF-S)
Image Rotation: 0° / 180° / AUTO
Document Scanning Format: JPG/PDF/PDF searchable
Min. Focus Distance: 10 cm / 3.94 inch