Touch screens and low-profile keys present challenges for people with vision impairments. It is important that keys are raised or designed so that users can easily feel the difference between keys. Users must be able to identify keys without activating the controls. In this example a user of a transit kiosk is unable to make the correct selection as the touch screen has no buttons and makes it impossible to know where to press. This standard applies to all devices with keys or touch screens, including information transaction machines, keypad entry devices, office equipment (printers, scanners, photocopiers, multifunction devices, fax machines), computers (desktop, laptop, handheld, notebooks) and peripherals (monitors, keyboards, CD writers), projectors, video cameras, TVs, VCRs, radio receivers, tape drives, phones (mobile, wired, and cordless) and pagers.