The higher the number the less light that gets through

built-in subwoofer and front speaker feature an X-Balanced Speaker Unit

The Projection Screen are thicken and smooth

On Screen Control: Yes

No matter where you're working

Lenovo 15.6" ThinkVision Full HD Portable Monitor in Raven Black - 62CAUAR1US 3966 The higher the number theMake productivity portable with ThinkVision M15. Its stunning form factor is meticulously designed to expand and match the screen real estate of multiple kinds of laptop; this light and slim 15. 6 inch FHD resolution mobile monitor weighs just 860g while its head measures a mere 6 mm thick; making it perfect for multi screen multitasking like spreadsheets in an airport lounge or sharing a presentation with a prospect in a restaurant.; Equipped with