Wireless/Wired Dual Mode Connection Connects with up to 3 devices via Bluetooth and switch among them easily. The Small Wireless Gaming Keyboard also has Wired Mode with USB Type-C Connection. Compatible with Windows/ macOS/ Android. 61 Keys Compact Design No additional number keys can meet your demands in Office or Home. The Mini 60% Mechanical Keyboard is Space-saving and Portable, you will be satisfied with how much space you save. Red Switch Linear Switch, meaning that the force at the beginning and the end of each stroke is nearly identical. The result is a feeling that most perceive as “smoother” and "faster" making them especially popular among gaming enthusiasts. The Red Switch is the best-fit switch using in Office. RGB Backlit This 60% Custom Mechanical Keyboard has 18 RGB Backlight Modes, 8 monochrome Backlight Modes, and 1 full-Color Backlight. These light modes can provide you a charming gaming environment at night. Ergonomic Designed The RK61 is designed with 8°Ergonomic angle which can help you relieve straining and alleviate carpal tunnel syndrome effectively. The integrated wrist rest gives you the comfort you need for marathon gaming sessions.