Brief Description: Uses a large, 10-digit, high contrast display and high contrast keys for ease of use. Voice support allows for input, results, and units to be announced to the user via built-in speaker or headphones. Has controllable volume and can repeat results. Uses two AA batteries.
Brief Description: This calculator uses a high contrast display and keys, allowing greater ease in performing calculations. There is full voice support for all functions, which is output through a speaker or headphones. The calculator is fully rechargeable and has a long battery life.