Description 1. Model: G21 2. Item: Keyboard and Mouse Combo 3. Keyboard Layout: 104 Key ANSI Layout 4. Keyboard Size: 440*127*30mm 5. Mouse Size: 126*70*35mm 6. Button Service Life: 5 Million Times Features: 1. The keyboard is not a real mechanical gaming keyboard, but with the mechanical touch hand-feeling. 2. Anti-skid and waterproof splash-proof design. 3. Rainbow color backlit effects, brings you cool gaming experience. 4. The DPI of the mouse is adjustable, you could switch the dpi values through 800/1200/1600dpi. 5. The smooth 3D roller with anti-skid scale grain, ensures your comfortable and accurate control.