The flat keyboard is more lightweight, slim body no burden even if you carry it with you. A receiver shared with mouse and keyboard. Supports multiple types of computer terminal with connection range of approximately 10 meters. Subversive innovative design, energy saving and low power consumpution technology saying goodbye to frequent battery replacement. Brand new chocoloate keycaps, narrow edge design feels more comfortable. The mouse design fits the entire palm, comfortable grip. The zero point design is exclusive to palm ripple arc. Greatly increases control and comfort.