Connect to multiple devices uses LIGHTSPEED or Bluetooth. Toggle between high-performance LIGHTSPEED wireless via USB receiver and Bluetooth— quickly and easily. Dedicated media controls with a precision engineered, edgeless volume wheel provide convenient and easy control to quickly play, pause, skip or mute your media. Enjoy 40 hours of game time on a single charge. Low battery warnings at 15 percent on the keyboard battery LED and via pop-up notification in the Logitech G HUB software. Quickly recharges in 3 hours. Beautifully crafted, the G915 TKL uses aircraft-grade aluminum alloy to deliver incredibly thin but rigid and durable design. Tenkeyless design provides more room for mouse movement. Store the USB receiver in the back of the keyboard for additional portability. Low Profile mechanical switches offers the speed, accuracy and performance of a mechanical switch at half the height The GL Linear switch features a completely smooth keystroke through the point of actuation. Comes in 3 options: GL Tactile, GL Linear or GL Clicky. LIGHTSYNC technology provides RGB lighting that synchronizes lighting with any content. Personalize each key or create custom animations from ~16.8M colors with Logitech G HUB software. 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.