4 transmission channels: Two Bluetooth 5.0 low energy channels, one 2.4 GHz wireless channel and one wired channel. Extra-small nano receiver for wireless operation. Removable USB-A to USB-C cable for data transfer and charging the lithium battery. AES-128 encryption in Bluetooth and 2.4 GHz mode. Includes carrying case made of recycled plastic. Precise CHERRY SX scissor mechanism for an ideal operating feeling. Status LEDs show low battery and charging status. Status LEDs integrated directly in the CAPS LOCK, NUM and FN keys. Easy access to special functions via FN key. Color LEDs indicate selected connection. Durable key labels. Solid metal plate in keyboard. Stable, fold-out feet for height adjustment. Slim, extra-compact dimensions ideal for out and about. Aesthetic statement with red keys and minimalist design.