The Wireless VisionBoard TM computer keyboard offers a big advantage to people who find it painful or difficult to use a traditional keyboard, with applications in such places as assistive living communities, manufacturing facilities, special educational institutions, adult daycare and home use. Connector: Wireless micro USB receiver Batteries: two AAA batteries included for each device. Large, high visibility keys offer improved readability and control. Wireless means flexibility and style. Our big key VisionBoard computer keyboards have gone wireless and added a wireless mouse!! Enjoy the added convenience of wireless technology with the only keyboard of its kind. With two models available with either white lettering on black keys or black lettering on white keys this combo includes an adult sized wireless mouse. Both the keyboard and the mouse work off the same micro USB wireless receiver so you don"t have to give up an additional USB port. The Wireless VisionBoard TM computer keyboard offers a big advantage to people who find it painful or difficult to use a traditional keyboard, with applications in such places as assistive living communities, manufacturing facilities, special educational institutions, adult daycare and home use. The Wireless VisionBoard improves readability and reduces eyestrain with big 1" square keys and large, bold black-on-white letters and numbers. Users with low vision or functional limitations can increase and improve capabilities with greater comfort and control. The ergonomically designed mouse is also ambidextrous so it doesn"t matter if you"re a Lefty or a Righty, we"ve got you covered.