SPECIFICATION : LIGHTSPEED wireless delivers pro-grade performance with flexibility and freedom from cords. Creates a clean aesthetic for battlestations. Delivers 40 hours on a single full charge. LIGHTSYNC technology provides RGB lighting that synchronizes lighting with any content. Personalize each key or create custom animations from about 16.8M colors with Logitech G HUB software. Low Profile mechanical switches offers the speed, accuracy and performance of a mechanical switch at half the height The GL Clicky switch features a distinctive sound and tactile feedback. Comes in 3 options: GL Tactile, GL Linear or GL Clicky. Tenkeyless design provides more room for mouse movement. Store the USB receiver in the back of the keyboard for additional portability. Beautifully crafted, the G913 TKL uses aircraft-grade aluminum alloy to deliver incredibly thin but rigid and durable design. Enjoy 40 hours of game time on a single charge. Low battery warnings at 15% on the keyboard battery LED and via pop-up notification in the Logitech G HUB software. Quickly recharges in 3 hours. PHYSICAL SPECIFICATIONS Length: 368 mm Width: 150 mm Height: 22 mm Weight (w/o cable): 810 g Cable Length: 1.8 m TECHNICAL SPECIFICATIONS Low Profile GL Tactile Key Switches: Actuation distance: 1.5 mm Actuation force: 50 g Total travel distance: 2.7 mm Battery Life: 40 hours (100% brightness) Onboard Memory: 2 Lighting Profiles 3 Macro Profiles Other Features: LIGHTSPEED Wireless Bluetooth LIGHTSYNC RGB, per key lighting Dedicated media control and edgeless volume wheel REQUIREMENTS LIGHTSPEED Wireless: USB port and Windows7 ® or later, macOS X 10.11 or later Bluetooth Bluetooth (Optional) Internet access and Windows 7 or later (64-bit) or macOS X 10.11 or later for Logitech G HUB software 3 Advanced features require Logitech G HUB Gaming Software, available for download at logitechg.com/GHUB