COMPACT SPLIT-KEY KEYBOARD: Ergonomic keyboard in a compact design with curved keys and split-key sloped promotes natural arm and hand position while typing to minimize chances of RSI, carpal tunnel syndrome, Dimensions (15.75 x 10.83 x 1.65 inches) WIDE PALM REST : Integrated palm rest with a large surface promotes a more relaxed typing angle by supporting the palm and wrist, which reduces median nerve pressure to minimize tensions on the forearm WIRELESS DUAL MODE: Switch between Bluetooth or wireless 2.4 GHz by switching the connection mode at the bottom of the keyboard; Nano receiver is stored safely in the compartment at the bottom of the keyboard COMFORTABLE TYPING FEELING: High-quality key switches that promotes responsiveness and resistance for a tactile and comfortable typing feeling; Long travel distance that gives a satisfying typing feeling and decreases mistyping