?Ergonomic Design and Mechanical Feel?RTK3B is a mechanical gaming keyboard with the scientific stair-up design and equipped PBT keycaps brings maximum comfort, keeping your hand in a most natural state to minimize hand fatigue after longtime use and help you minimize typos,more practical for Gamers and Typist. ?Fully Programmable Driver?RTK63B Bluetooth Mechanical keyboard allows for all keys and keypress combinations to be remapped to execute complex commands, it can customize various modes of lighting and colors(The driver can only be used in Windows, does not support IOS system.). ✓?Wide Compatibility?This wireless mechanical keyboard featured with waterproof, dust-proof, conflict-free, FN short key function, rainbow RGB backlit, non-slip mat, type-c interface, plug and play, 63key design, removable keycap, hotswap Optical switches ,eeasy to clean. compatible with devices like pc, mac, laptop, computer,Xbox, PlayStation which support windows series system or Android, Linux, IOS, Compatible with Windows, macOS, iOS, Android, Linus,. ✓?Optical switches ,PBT keycaps&Indicator Light?RTK63B Bluetooth gaming keyboard has been outfitted with Hotswappable Optical Switches and PBT keycaps ,Different from other keyboards, it has 3 indicator lights, The first: Capslock prompt.The second: battery indicator and Bluetooth connection prompt. Red is battery reminder function, blue is Bluetooth connection reminder.The third: press FN+WIN, the light will turn on, indicating that the WIN key is locked.You can replace the keycaps and hot swappabl switch to your liking(Hotswappable with only optical switches). ?Cool RGB Backlit Keyboard & 3000mAh Battery?RTK63B wireless gaming keyboard include 14 RGB backlight modes, 8 monochrome backlight modes and 11 full-color backlight modes, 6 brightness &light speed levels and per-key customizable functions, this Bluetooth mechanical keyboard has 3000mAh battery delivers 70 hours of continuous use on a 5-hour full charge enhance your gameplay atmosphere at its maximum, and the light can also be turned off if you don’t need it for saving power,Standby time 480 hours.You can charge it in a few hours with the attached Type-C cable. ?Lastest 3 Modes Connectivity?The Bluetooth Mechanical Gaming Keyboard Supporting Bluetooth 5.1/3.0 can connect up to 3 devices simultaneously and Through FN+Q/W/E ensuring 3 different devices switchable in wireless mode and help you maximize your efficiency. Meanwhile,FN+R give you the option to go wired for competitive games,this bluetooth gaming keyboard can be connected to your steam deck, PC, laptop, iPad, phone,. 60% Compact Layout?RTK63B wireless mechanical gaming keyboard removes the numeric keypad, leaving more room for mouse movement and desktop. So that your desk has more room for mouse, headphones, snacks, drinks and water glasses .The mini keyboard is a travel-friendly size and fits easily into most bags and backpacks.