【Wireless Mechanical Keyboard】: DIERYA DK61 Pro is ultra-compact layout of 61 Keys without Numpad to save your desktop's space. Also this mini wireless keyboard has a stable Bluetooth 5.1 chipset can connects up to 3 devices at the same time with switch among them easily. More particular for FPS Gamers and Typist.【Hot Swappable Optical Red Switches】: High Quality Gateron optical red switches employ optical beam-base actuation apply for DK61 Pro Keyboard which are more quiet, durable, low trigger pressure, linear and soft switches can lasting 100 million key-presses greater than traditional mechanical switches (50 million key-presses ).【Ergonomic Mechanical Keyboard】: DIERYA DK61 Pro is designed according to ergonomics which has scientific stair-up keycaps design to made sure maximum comfort and minimum fatigue after long-time using the mechanical keyboard. The advanced PBT double-shot material keycaps are more wear-resistant surface and less congest grime to made you enjoy excellent mechanical feel.【4 Profile Layers & Programmable Macros】：DIERYA DK61 Pro has professional drive software to recording macros to design your own new modes like setting macros with different keybindings or shortcuts. Remapped to execute complex commands which improving efficiency for work & game. RGB backlit has 16.8 million color for your choice and support all keys without conflict.【Compatibility】: DIERYA DK61 Pro Wireless / Wired mechanical keyboard compatible with Windows / Mac-OS / Android. Also, the 60 percents mechanical keyboard have IPX4 Waterproof certification which no need to worry about the spilled drinks when play.