[KOORUI SERVICES] KOORUI provide high-quality gamer keyboard and premium services, included 12 months warranty. If you find any damage, malfunction or missing accessories, please feel free to contact us. [Multi-Functionality and Compatibility] The mini keyboard features 12 multi-function keys for convenient multimedia control, including volume adjustment and media playback. It is compatible with both Apple and Microsoft operating systems, and the multi-function combination keys are also compatible. [Anti-Ghosting Technology] Full-key anti-ghosting technology ensures that every keystroke is registered, and even when multiple keys are pressed at the same time, the keyboard's super-responsive speed keeps up with your best moves, allowing you to enjoy a seamless, uninterrupted gaming experience and help you win games. [Hot-Swappable Switches] The 61 Keys mechanical keyboard comes with six extra switches (two each of red, brown, and blue) for you to try different switch types and enrich your typing experience. Additionally, the double-shot injection keycaps are fade-resistant and long-lasting. [61 Keys with Gorgeous Backlighting] The 60% gaming keyboard can save desk space. The detachable Type-C cable and small size make it easy to carry around for home/office use or business trips. It offers 26 backlighting modes with RGB effects, providing over 16 million color combinations to personalize your keyboard's appearance.