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Wireless Keyboard. A Wireless Keyboard is a keyboard that utilizes Bluetooth technology to communicate with the CPU instead of connecting via a plug-in cord. They also need batteries, most often 4 AA batteries, in order to operate. The operational range varies depending on the specific device. Wireless Mouse. A Wireless Mouse is a computer mouse that communicates with the CPU via Bluetooth technology instead of via a plug-in cord. The operational range varies depending on the model and they usually operate on 2 AA batteries. Wireless Joystick. A lever that moves in all directions and controls the movement of a pointer or some other display symbol. A joystick is similar to a mouse , except that with a mouse the cursor stops moving as soon as you stop moving the mouse. With a joystick, the pointer continues moving in the direction the joystick is pointing. To stop the pointer, you must return the joystick to its upright position. Most joysticks include two buttons called triggers