Audio Systems 
Blu-Ray 
Bluetooth Headsets 
Camcorders 
Cars 
Cellphones 
Desktops 
Digital Cameras 
eReaders 
Gaming 
GPS 
HDTV 
Headphones 
Health 
Household 
Laptops 
MP3 Players 
Remotes 
Software 
Streaming Players 
Tablets 
Contrast detection enables us to distinguish an object or a shape from its surroundings. High contrast is essential, especially for reading.
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ElderGadget > Human Factors Guide: Contrast Detection
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