Introducing the latest Composite Firmware - Codename : The Twin Duck The Ducky primarily acts as a USB Mass Storage Device, and on a click of the button will start emulating a Keyboard. Its multi-OS, multi-lingual and comes in three flavours: c_duck_v2.hex - Supports DuckyScript as HID payload, triggered automatically and on GPIO (limited instructions) c_duck_v2_S001.hex - Triggered on CAPS/NUM/SCROLL LOCK c_duck_v2_S002.hex - Triggered on Ducky's GPIO only! Depending on your circumstances