Olympus RS-31H Keyboard and Multimedia USB Foot Pedal / 4 Switches, Control PC or Mac with your foot 4 Programmable Buttons switch Multimedia Keys Support (Scan Next Track, Stop, Play/Pause, Increase volume, Decrease volume. Launch Media Player Windows & Mac). Create Keyboard shortcuts support (e.g. Ctrl + Alt + P or Alt + 1) Anti-slip base to ensure the foot switch remains secure and stable at all times Foot Switch Configuration Software (download).