This Pedal will be let you free up some key real estate for other functions,triggered by your foot easily,Hands free and it frees up other keys. Set up easily. Just download the software from the website.It is fairly sturdy and makes a little click when press it. The software will let you select keys from a menu, so you can program it to hit some extended keys that exist, like F24. It's very useful when you're trying to avoid colliding with other hotkeys. Specification: Item size: 2.8''x 3.93"x 1.3" Item weight: 4.87oz/ 138g USB Length:1.8M/6ft Lifetime: over 100,000 times It can be support more than one on a PC, just programmed individually, then plug them in. System support : (1)Dos (2)Win 2000 (3)Win xp (4)Win 7 (5)Win 8 (6)Win 10 (7)Linux (8)MAC (9)Android Notice: Please configure it on Windows PC with the provided software. That's meaning you'll need to install the drive on a Windows computer and configure what you want to do. Once set, then plug into your Mac or other system. How to use: 1. Download the latest software from website; 2. Plug the USB foot pedal into the USB port of your windows computer, it's plug and play, The pedal itself doesn't need any special drivers; 3.The default key it's " B", you can change the keys you assign if your need changes by using the shortcut and reprogramming it by the software; 4.Program USB foot pedal from an air-gapped windows computer using the software ( software just support windows PC) , map the key with software in windows,you can program what you want. then plug and play in anywhere else.