1.1.Suspension style key caps, waterproof and dust-proof, and easy to take down to clean thoroughly for longer work time. 2. Amphitheater style and Curve key design provides super cool mechanical feeling. 3.The transmission line is equipped with anti-interference magnet ring for better operation. 4.Rainbow Color Backlight effects: bringing cool gaming experience, in particular increase gaming keys backlit effect and easy type in the dark 2.1. DPI adjustment provides 800/1200/1600 gear shift control for different games. 2. The smooth 3D roller with anti-s scale grain ensures you to operate comfortably. 3. The buttons structure adopt precursor type streamline design provides excellent click sense. 4. Ergonomic design: perfect size fits naturally in your hand and provides comfortable touch-feeling. 3.Keyboard Key Numbers: 104 keys Keyboard Size: 44x 12.7 x 3cm Mouse Size: 12.6 x 7 x 3.5cm Button Service Life: 5million times