With the G309 in your hand, your enemies won't know what hit them. The new Lightforce switches have a hybrid optical-mechanical design. That means you'll get the best of both worlds - instant optical action with tactile mechanical feedback. And with the HERO 25K gaming sensor, you'll have the speed and accuracy you need to dominate the playfield. Plus, it only weighs 86 g, so it'll let you show off your quick reflexes.Good to know - With Lightspeed wireless, you won't even notice you're not plugged in - except for the freedom - It's compatible with the Powerplay wireless gaming surface, which lets you ditch the batteries - With onboard memory you can switch between 5 profiles for different games or players - All 6 buttons are programable, so you can map your hotkeys to save precious milliseconds