To accommodate the movement track of fingers tapping up and down, the height difference streamline design was used. Feel more at ease and click more light. The keyboard's waterproof design eliminates the worry of liquid seeping in and damaging it, so even if there is splashing, it won't interfere with regular G21 use. Feel softer, last longer, and have a far higher level of wear resistance than other ABS Long-term use of the key cap won't result in an oily feel. Quick 10-key multimedia operation that is convenient and worry-free. You can also quickly switch between calculator, multimedia playback, volume adjustment, and other features by using the FN + F1 ~ F12 combination.