Features:1. Change of Colors of key on the keyboards: Purple、 Red、 Blue by pressing lighting Fn+SL button.2. Ergonomics、 Comfortably and easily operation3. Waterproof4. Ideal Gaming Companion with strong multi-media functionSpecifications:Windows98/XP/Win7/Win8、 etc.Net Weight: 800gUSB: USB lineLoad-bearing of the key: 65gKey Life: >1000W timesSway Test: >3000 timesRoute of Key: 3.6mmVoltage: 5VCurrent: 50mADimension:500(L)*215(W)*45(H)mm