G105 includes six programmable G-keys that make complex actions simple. Three separate modes deliver access to a total of 18 unique functions and macro combinations quickly and consistently. With G-keys, instant access to a variety of customizable functions is just a click away. Assign a G-key to open microphone channels and talk to friends through Ventrilo or to record your play on the fly. Assign a G-key to send predetermined text messages to your team. You can even program G-keys to interact with your Logitech G mouse to change DPI levels on the fly.