TRUE MECHANICAL - Featuring CHERRY MX Ultra Low Profile switches (made in Germany) with all the benefits of a mechanical keyboard for an unrivaled typing-experience (up to 50 million strokes per key) MULTI-DEVICE FUNCTION - 4 transmission channels to connect up to 4 devices F1: 2.4 GHz wireless, F2+ F3: BT 5.2 Low Energy, F4: Corded Channel RECHARGEABLE BY USB-C - Detachable USB-A to USB-C cable for charging and optional corded mode - built-in rechargeable lithium battery ILLUMINATION - White illumination with additional color LEDs for status keys