Keyboard Shortcut Foot Pedal
If you find using the keyboard a little inconvenient especially while you’re enjoying a cuppa but still want to continue surfing the web, these keyboard foot pedals will definitely suit you.
The foot pedals can be mapped to different keys on a keyboard like pgup and pgdn for scrolling, and even macros such as ctrl-c for copying and ctrl-v for pasting. Even without anything in your hand, the foot pedals do seem to help in boosting efficiency.
Available in two configurations, single-pedal or three-pedal costing 2,780 and 4,980 yen respectively, Thanko Japan.