The keyboard cap is made of ABS environment-friendly plastic, which is comfortable to the touch and ergonomic design This 104-key full-size keyboard has no conflicts between all keys. In the fierce game and rapid typing process, no matter how many other keys are pressed at the same time, each key will be recorded The round keycap looks like a classic typewriter, giving you a comfortable typing feeling and a stable touch This wireless keyboard and mouse set are super stable connections with no delays or dropped connections One receiver, shared by keyboard and mouse, supports various types of computer terminals, the connection range is about 10 meters, free movement in the office area is not restricted Specifications: Battery: 1 AA battery for the mouse (not included), 1 AAA battery for the keyboard (not included) Lighting effect: no light Number of keys: keyboard: 104, mouse: 3 Mouse size/weight: 105*60*30mm, 59g Keyboard size/weight: 445*125*25mm, 336g Connection: 2.4G wireless Lifespan: 3 years Material: ABS