Texas Instruments lends their high-quality design to the basic TI-503 Handheld Calculator. The vibrant, attractive color really stands out and lets coworkers know this calculator is yours. It"s also perfect and handy to keep around the house and small enough to toss in your pocket or purse to take shopping. This durable, battery-powered calculator features all of the basic math functions and the rubber keys have a comfortable grip and feel. The screen is large and easy to read for a pocket-sized calculator. Battery is included.