Items commonly found in pilots' flight bags include operating manuals for the aircraft being flown, operations manuals for the flight crew, aeronautical and navigational charts (usually Jeppesen chart binders or "Jepps", a Route Manual, flight checklists, logbooks and weather information), pilot's documentation and licenses (such as their passport, pilot's license, Aviation English license, class-specific medical certificate), and equipment or accessories (such as a calculator, pens, sunglasses, radio headphones or binoculars).