LIGHT-SPEED wireless delivers pro-grade performance with flexibility and freedom from cords. Creates a clean aesthetics for battle-stations. Delivers 30 hours on a single full charge. IGHTSYNC technology provides next-gen RGB lighting that synchronizes lighting with any content. Personalize each key or create custom animations from ~16.8M colors with Logitech G HUB software.Actuation force: 50 gram Low Profile mechanical switches offers the speed, accuracy and performance of a mechanical switch at half the height. The GL Tactile switch produces a discernible bump at the point of actuation. Comes in 3 options: GL Tactile, GL Linear or GL Clicky. Beautifully crafted, the G915 uses aircraft-grade aluminum alloy to deliver incredibly thin but rigid and durable design. Requirements LIGHTSPEED - USB port and Windows 7 or later, macOS X 10.11 or later.Bluetooth Bluetooth enabled device with Windows 8 or later, macO X 10.11 or later, Chrome OS, or Android 4.3 or later, iOS 10 or later . (Optional) Internet access for Logitech G HUB software Five dedicated G-keys can be programmed with custom macros and commands per game or app profile. Requires use Logitech G HUB to easily setup and manage profiles, commands and more.