The Apple MacBook Air 2014 with a Core i5 processor is a sleek and lightweight laptop designed for users who prioritize portability and battery life. Here are some of its specifications and features:

• Processor: Intel Core i5-4260U processor (1.4GHz)
• Memory: 4GB DDR3 RAM (upgradable to 8GB)
• Storage: 128GB or 256GB Solid State Drive (SSD)
• Display: 13.3-inch LED-backlit display (1440 x 900)
• Graphics: Intel HD Graphics 5000
• Operating system: macOS
• Ports: 2 x USB 3.0, Thunderbolt 2, SDXC card slot, audio jack
• Battery life: Up to 12 hours of use

The MacBook Air 2014 is incredibly thin and lightweight, making it easy to carry around. It also boasts a long battery life of up to 12 hours, allowing for extended use without needing to charge. The laptop comes pre-installed with Apple's macOS operating system, which offers a user-friendly interface and a range of productivity and entertainment applications. Its Intel Core i5 processor provides sufficient power for everyday tasks such as web browsing, email, and document editing. Please note that this laptop may be a used device, so it's important to consider its condition and the reputation of the seller before making a purchase.