Shaking Keyboard / Keyboard

Shaking Keyboard is a wireless keyboard which saves energy and provides effective utilization of desk space. Using the principle of tumbler toy as the power switch, users turn on the power with easily pressing the keyboard down to the desk as horizontal position.
Due to the effect of gravity, the keyboard swings back as vertical position with power turned off automatically while users release it after using. There are piezoelectric elements which convert kinetic energy of each keystroke into electrical energy under each keypad. Besides, Shaking Keyboard use LED monitor as bettery indicator.